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timeouts call-disconnect through timing clear-wait
- timeouts call-disconnect
- timeouts initial
- timeouts interdigit (voice port)
- timeouts power-denial
- timeouts ringing
- timeouts wait-release
- timeouts teardown lmr
- timer accessrequest sequential delay
- timer cluster-element
- timer irr period
- timer lrq seq delay
- timer lrq seq delay centisec
- timer lrq window
- timer lrq window decisec
- timer media-inactive
- timer receive-rtcp
- timer receive-rtp
- timer server retry
- timer server timeout
- timers
- timers buffer-invite
- timers comet
- timers connect
- timers connection aging
- timers disconnect
- timers dns
- timers expires
- timers hold
- timers keepalive
- timers notify
- timers prack
- timers refer
- timers register
- timers rel1xx
- timers trying
- timing clear-wait
timeouts call-disconnect
To configure the delay time for which a Foreign Exchange Office (FXO) voice port waits before disconnecting an incoming call after disconnect tones are detected, use the timeouts call-disconnect command invoice-port configuration mode. To reset to the default, use the no form of this command.
Usage Guidelines
Use this command to change the time for which an FXO voice port remains connected after the calling party hangs up, when a call is not answered. Use of the infinity keyword is not recommended for disabling the disconnect supervision feature.
Examples
The following example configures voice port 0/0/1 to remain connected for 3 seconds while a disconnect tone is received by the voice port:
voice-port 0/0/1 timeouts call-disconnect 3Related Commands
Command
Description
timeouts initial
Configures the initial digit timeout value for a specified voice port.
timeouts interdigit
Configures the interdigit timeout value for a specified voice port.
timeouts wait-release
Specifies the delay time for releasing the calling voice port after a disconnect tone is received from the called voice port.
timing delay-duration
Configures the delay dial signal duration for a specified voice port.
timeouts initial
To configure the initial digit timeout value for a specified voice port, use the timeouts initialcommand in voice-port configuration mode. To reset to the default, use the no form of this command.
Usage Guidelines
Use the timeouts initialcommand to specify the number of seconds for which the system waits for the caller to input the first digit of the dialed digits. The timeouts initial timer is activated when the call is accepted and is deactivated when the caller inputs the first digit. If the configured timeout value is exceeded, the caller is notified through the appropriate tone and the call is terminated.
To disable the timeouts initial timer, set the seconds value to 0.
timeouts interdigit (voice port)
To configure the interdigit timeout value for a specified voice port, use the timeouts interdigitcommand in voice-port configuration mode. To reset to the default, use the no form of this command.
Usage Guidelines
Use this command to specify the number of seconds for which the system waits (after the caller inputs the initial digit) for the caller to input a subsequent digit of the dialed digits. The timeouts interdigit timer is activated when the caller inputs a digit and is restarted each time the caller inputs another digit until the destination address is identified. If the configured timeout value is exceeded before the destination address is identified, the caller is notified through the appropriate tone and the call is terminated.
To disable the timeouts interdigit timer, set the seconds value to 0.
timeouts power-denial
To set the duration of the power denial timeout for the specified FXS voice port, use the timeouts power-denial command in voice-port configuration mode. To reset the timeout to the default, use the no form of this command.
Usage Guidelines
This command sets the duration of the power denial that the voice gateway applies to the FXS port when a call disconnects. During the power denial duration the caller hears silence. To disable the power denial on a port, use the no supervisory disconnect lcfo command.
timeouts ringing
To configure the timeout value for ringing, use the timeouts ringing command in voice-port configuration mode. To reset to the default, use the no form of this command.
Command History
Release
Modification
12.0(7)XK
This command was introduced on the Cisco 2600 series, Cisco 3600 series, and Cisco MC3810.
12.1(2)T
This command was integrated into Cisco IOS Release 12.1(2)T.
12.4(11)T
The command default value was increased from 180 seconds to infinity for SCCP-controlled analog ports.
Usage Guidelines
This command allows you to limit the length of time for which a caller can continue ringing a telephone when there is no answer.
In Cisco IOS Release 12.4(11)T and later the default for this command is set to infinity for SCCP-controlled analog ports to prevent this timeout from expiring before the ringing no-answer timeout that is configured on Cisco Unified CallManager Express with the timeouts ringing command in telephony-service mode.
Examples
The following example configures voice port 0/0/1 to allow ringing for 600 seconds:
voice-port 0/0/1 timeouts ringing 600timeouts wait-release
To configure the delay timeout before the system starts the process for releasing voice ports, use the timeouts wait-release command in voice-port configuration mode. To reset to the default, use the no form of this command.
Syntax Description
seconds
Duration, in seconds, for which a voice port stays in the call-failure state while the Cisco router or concentrator sends a busy tone, reorder tone, or out-of-service tone to the port. Range is 3 to 3600. Default is 30.
infinity
The voice port is never released as long as the call-failure state remains.
Usage Guidelines
Use this command to limit the time a voice port can be held in a call failure state. After the timeout, the release sequence is enabled.
You can also use this command for voice ports with Foreign Exchange Station (FXS) loop-start signaling to specify the time allowed for a caller to hang up before the voice port goes into the parked state.
timeouts teardown lmr
To configure the time for which a Land Mobile Radio (LMR) voice port waits before tearing down an LMR connection after detecting no voice activity, use the timeouts teardown lmr command in voice-port configuration mode. To reset to the default, use the no form of this command.
Syntax Description
seconds
Duration in seconds for which an LMR voice port waits before tearing down an LMR connection after detecting no voice activity. Valid values are 5 to 60000. The default is 180 seconds.
infinity
Disables disconnect supervision. The voice port does not disconnect when no voice activity is detected.
Usage Guidelines
The timeouts teardown lmrcommand has an effect on an ear and mouth (E&M) voice port only if the signal type for that port is LMR.
Examples
The following example configures voice port 1/0/1 on a Cisco 3745 to remain connected for 6 seconds after no voice activity is detected by the voice port:
voice-port 1/0/1 timeouts teardown lmr 6Related Commands
Command
Description
timeouts initial
Configures the initial digit timeout value for a specified voice port.
timeouts interdigit
Configures the interdigit timeout value for a specified voice port.
timeouts wait-release
Specifies the delay time for releasing the calling voice port after a disconnect tone is received from the called voice port.
timeouts delay-duration
Configures the delay dial signal duration for a specified voice port.
timer accessrequest sequential delay
To configure the intermessage delay used when a border element (BE) is trying to determine a route from a list of neighboring BEs, use the timeraccessrequest sequential delay command in Annex G configuration mode. To reset the default value, use the no form of this command.
Command History
Release
Modification
12.2(2)XA
This command was introduced.
12.2(4)T
This command was integrated into Cisco IOS Release 12.2(4)T. Support for the Cisco AS5300, Cisco AS5350, and Cisco AS5400 is not included in this release.
12.2(2)XB1
This command was implemented on the Cisco AS5850.
12.2(11)T
This command was integrated into Cisco IOS Release 12.2(11)T.
Usage Guidelines
Setting the value of the delay to 0 causes the BE to broadcast or "blast" the AccessRequest messages to all eligible neighbors.
timer cluster-element
To configure the length of time between dynamic capacity messages to the local gatekeeper, use the timer cluster-elementcommand in gatekeeper configuration mode. To stop sending dynamic updates, use the no form of this command.
Syntax Description
announce
Configures the lengh of time between announcement messages to the gatekeepers in the local cluster.
resource -update
Configures the lengh of time between resource update messages to gatekeepers in the local cluster.
seconds
Number of seconds between resource updates sent to the gatekeeper. The valid range is 1 to 60. There is no default value.
Usage Guidelines
Use the timer cluster-elementcommand to manage the length of time between resource updates and time between announcement messages sent to the gatekeeper. The announcement indication is exchanged at a set interval of time and carries information about the call and endpoint capacity for the zone. This allows the alternate gatekeepers to manage the bandwidth for a single zone even though the gatekeepers are in separate physical devices.
The gatekeeper assumes that the alternate gatekeeper has failed (and assumes that any previously allocated bandwidth is now available) if the gatekeeper does not receive an announcement message within six announcement periods or if the TCP connection with the gatekeeper is detected to be broken.
Lower this interval for closer tracking between elements. Raise it to lower messaging overhead.
Examples
The following command sets the announcement period to 20 seconds:
Router(config-gk)# timer cluster-element announce 20The following command resets the announcement period to the default value:
Router(config-gk)# no timer cluster-element announceThe following example shows the time between resource update messages to gatekeepers in local cluster being set to 20 seconds:
Router(config-gk)# timer cluster-element resource-update 20timer irr period
To configure the information request response (IRR) timer, or the periodic interval of IRR messages sent by the gatekeeper, use the timer irr period command in gatekeeper configuration mode. To disable, use the no form of this command.
Usage Guidelines
Use this command to configure IRR frequency that is included in the admission confirm (ACF) message. The IRR frequency is set to 240 seconds (4 minutes), based on an average 4-minute call hold time. The IRR allows the gatekeepers to terminate calls for which a disengage request (DRQ) has not been received. If missing DRQs are not a problem, the IRR frequency can be set to a larger value than 4 minutes, minimizing the number of unnecessary IRRs sent by a gateway.
Examples
The following example shows that the IRR timer has been configured with a value of 45, meaning that IRR messages are sent by the gatekeeper every 45 minutes:
gatekeeper . . . lrq reject-resource-low no irq global-request timer lrq seq delay 10 timer lrq window 6 timer irr period 45 no shutdownRelated Commands
Command
Description
timer lrq seq delay
Defines the time interval between successive LRQ messages.
timer lrq window
Defines the time window during which the gatekeeper collects responses to one or more outstanding LRQs.
timer server timeout
Specifies the timeout value for a response from a back-end GKTMP server.
timer lrq seq delay
To define the time interval between successive sequential location requests (LRQs), use the timer lrq seq delaycommand in gatekeeper configuration mode. To reset to the default, use the no form of this command.
Usage Guidelines
The LRQ sequential timing source (SEQ) delay is used to set the time between sending LRQs to remote gatekeepers for address resolution. To resolve an address, the gatekeeper might have several remote zones configured, and it can send the LRQs simultaneously (blast) or sequentially (seq). The gatekeeper chooses the best route based on availability and cost. Using LRQs sequentially results in lower network traffic, but it can increase latency of calls when the most preferred route is unavailable.
Lowering the time increases traffic on the network but might reduce the call setup time.
timer lrq seq delay centisec
To define the time interval between successive sequential location requests (LRQs), use the timer lrq seq delay centicescommand in gatekeeper configuration mode. To reset to the default, use the no form of this command.
Usage Guidelines
The LRQ sequential timing source (SEQ) delay is used to set the time between sending LRQs to remote gatekeepers for address resolution. To resolve an address, the gatekeeper might have several remote zones configured, and it can send the LRQs simultaneously (blast) or sequentially (seq). The gatekeeper chooses the best route based on availability and cost. Using LRQs sequentially results in lower network traffic, but it can increase latency of calls when the most preferred route is unavailable.
Lowering the time increases traffic on the network but might reduce the call setup time.
NoteThis command cannot be configured at the same time as the timer lrq seq delaycommand.
timer lrq window
To define the time window during which the gatekeeper collects responses to one or more outstanding LRQs, use the timer lrq windowcommand in gatekeeper configuration mode. To reset to the default, use the no form of this command.
Usage Guidelines
Increasing the time can increase the call success rate but might reduce the overall time for call setup.
timer lrq window decisec
To define the time window during which the gatekeeper collects responses to one or more outstanding LRQs, use the timer lrq window deciseccommand in gatekeeper configuration mode. To reset to the default, use the no form of this command.
Usage Guidelines
Increasing the time can increase the call success rate but might reduce the overall time for call setup.
NoteThis command cannot be in effect at the same time as the timer lrq windowcommand.
timer media-inactive
To enable the timer for media inactivity detection using the digital signal processor (DSP) (based on RTP as the only criterion) and to configure a multiplication factor based on the real-time control protocol (RTCP) timer interval, use the timer media-inactive command in gateway configuration mode. To reset to the default, use the noform of this command.
Command Default
A call is considered inactive if no RTP packet activity is detected for a period of time calculated as five times the interval set by the ip rtcp report interval command.
Usage Guidelines
When the timer media-inactive command is used, the gateway uses the inactivity timer as a combination of the timer media-inactive command and the ip rtcp report interval command. The timer media-inactivecommand uses DSP statistics. This capability is based on the configuration of callfeature parameters using application command-line interface (CLI) to enable control.
The media are considered inactive only if there is no transfer of RTP packets in the send direction and no RTP packets in the receive direction. If RTP is present in either the send or receive direction, it is considered active. In this mode, DSP filters out any comfort noise packets, and the presence of any comfort noise packet is considered inactivity in either direction.
The multiple argument (or multiplication factor) is multiplied by the interval that is set using the ip rtcp report interval command. This command configures the average interval between successive RTCP report transmissions for a given voice session. For example, if the value argument is set to 25,000 milliseconds, an RTCP report is sent every 25 seconds, on average. If no RTP packets are received during the calculated interval, the call is disconnected. The gateway signals the disconnect to the VoIP network and the time-division multiplexing (TDM) network so that upstream and downstream devices can clear their resources.
Examples
The following example uses the ip rtcp report intervalcommand to set the reporting interval to 5000 milliseconds, and then the timer media-inactive command to set the multiplication factor to 10. The result is that calls detected as inactive for 50 seconds (5,000 milliseconds times 10) will be disconnected.
Router(config)# ip rtcp report interval 5000 Router(config)# gateway Router(config-gateway)# timer media-inactive 10 Router(config-gateway)# exittimer receive-rtcp
To enable the Real-Time Control Protocol (RTCP) timer and to configure a multiplication factor for the RTCP timer interval for Session Initiation Protocol (SIP) or H.323, use the timer receive-rtcp command in gateway configuration mode. To reset to the default, use the no form of this command.
Command Default
The default value for the timer argument is 0 multiples, which disables the timer so that no silence detection is in effect.
Command History
Release
Modification
12.2(2)XB
This command was introduced.
12.2(8)T
This command was integrated into Cisco IOS Release 12.2(8)T. Support for the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 is not included in this release.
12.2(11)T
This command was implemented on the Cisco AS5300, Cisco AS5350, and Cisco AS5400.
Usage Guidelines
The timer receive-rtcp command uses library-based detection and the receipt of either Real-Time Protocol (RTP) or RTCP packets is considered activity on a call. Silence detection occurs only if there are no packets received for both RTP and RTCP.
When the ip rtcp report interval and timer receive-rtcp commands are used, the gateway uses RTCP report detection, rather than RTP packet detection, to determine whether calls on the gateway are still active or should be disconnected. RTCP report detection is therefore more reliable than RTP packet detection because there can be periods during voice calls when one or both parties are not sending RTP packets.
One common example of a voice session in which no RTP is sent is when a caller dials into a conference call and mutes that endpoint. If voice activity detection (VAD, also known as silence suppression) is enabled, no RTP packets are sent while the endpoint is muted. However, the muted endpoint continues to send RTCP reports at the interval specified by the ip rtcp report interval command.
The timer receive-rtcp timer argument (or m factor for multiplication factor) is multiplied by the interval that is set using the ip rtcp report intervalcommand. If no RTP or RTCP packets are received during the calculated interval, the call is disconnected. The gateway signals the disconnect to the VoIP network and the time-division multiplex (TDM) network so that upstream and downstream devices can clear their resources. The gateway sends a Q.931 DISCONNECT message to the TDM network and a SIP BYE or H.323 ReleaseComplete message to the VoIP network to clear the call when the timer expires. The Q.931 DISCONNECT message is sent with a cause code value of 3 (no route) for SIP calls and a cause code value of 41 (temporary failure) for H.323 calls. No Q.931 Progress Indicator (PI) value is included in the DISCONNECT message.
To show timer-related output for SIP calls, use the debug ccsip events command. To show timer-related output for H.323 calls, use the debug cch323 h225command.
Examples
The following example sets the multiplication factor to 10 (or x * 10, where x is the interval that is set with the ip rtcp report interval command):
Router(config)# gateway Router(config-gateway)# timer receive-rtcp 10 Router(config-gateway)# exitRelated Commands
Command
Description
debug cch323 h225
Traces the state transition of the gateway H.225 state machine based on the processed events.
debug ccsip events
Displays all SIP SPI events tracing and traces the events posted to SIP SPI from all interfaces.
ip rtcp report interval
Configures the minimum interval of RTCP report transmissions.
timer receive-rtp
To configure the Real-Time Transport Protocol (RTP) timeout interval to clear connections that pause indefinitely, use the timer receive-rtp command in gateway configuration mode. To reset the timer to the default value, use the no form of this command.
Usage Guidelines
This command is used to configure the RTP timeout interval in seconds. The timeout value is used to clear connections that pause indefinitely. The recommended value is 1200 seconds, or 20 minutes.
Examples
The following example shows the RTP timeout interval set to the recommended 1200 seconds (20 minutes).
Router(config-gateway)# timer receive-rtp 600Related Commands
Command
Description
codec (dspfarm-profile)
Specifies the codecs supported by a DSP farm profile.
dspfarm profile
Enters DSP farm profile configuration mode and defines a profile for DSP farm services.
maximum sessions (dspfarm-profile)
Specifies the maximum number of sessions that need to be supported by the profile.
timer server retry
To set the gatekeeper’s retry timer for failed Gatekeeper Transaction Message Protocol (GKTMP) connections, use the timer server retry command in gatekeeper configuration mode. To reset the timer to its default, use the no form of this command or the default server timer retry command.
Usage Guidelines
After the gatekeeper detects that its GKTMP server TCP connection has failed, the gatekeeper retries the server after an interval based on the setting of this timer, and keeps retrying until the connection is established.
This timer applies only to deployments where static triggers are used between the gatekeeper and the GKTMP server. If dynamic triggers are used, the server must determine and implement a retry mechanism if the TCP connection to the gatekeeper fails.
timer server timeout
To specify the timeout interval for a response from a back-end Gatekeeper Transaction Message Protocol (GKTMP) application server, use the timer server timeoutcommand in gatekeeper configuration mode. To reset to the default, use the no form of this command.
Usage Guidelines
Use this command to specify the timeout interval for a response from a back-end GKTMP application server.
timers
To configure the Session Initiation Protocol (SIP) signaling timers, use the timers command in SIP user-agent configuration mode. To restore the default value, use the no form of this command.
Syntax Description
trying number
Time (in ms) to wait for a 100 response to an INVITE request. Range is from 100 to 1000. Default is 500.
connect number
Time (in ms) to wait for a 200 response to an ACK request. Range is from 100 to 1000. Default is 500.
disconnect number
Time (in ms) to wait for a 200 response to a BYE request. Range is from 100 to 1000. Default is 500.
expires number
Time (in ms) for which an INVITE request is valid. Range is from 60000 to 300000. Default is 180000.
Command History
Release
Modification
12.1(1)T
This command was introduced.
12.1(3)T
This command was modified to change the names of the parameters. Two of the parameters (invite-wait-180 and invite-wait-200) were combined into one (trying).
12.2(2)XA
This command was implemented on the Cisco AS5400 and AS5350.
12.2(2)XB1
This command was implemented on the Cisco AS5850.
12.2(8)T
This command was integrated into Cisco IOS Release 12.2(8)T and implemented on Cisco 7200 series routers. Support for the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 is not included in this release.
12.2(11)T
This command is supported on the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 in this release.
Usage Guidelines
If you used an earlier version of this command to configure timers, the timer settings are maintained. The output of the show running-config command reflects both previous and current timers.
To reset this command to the default value, you can also use the default command.
Examples
The following example sets the trying timers to the default of 500 ms.
Router(config)# sip-ua Router(config-sip-ua)# timers trying 500Related Commands
Command
Description
default
Sets a command to its default.
inband - alerting
Specifies an inband-alerting SIP header.
max - forwards
Specifies the maximum number of hops for a request.
retry ( SIP user - agent )
Configures the SIP signaling timers for retry attempts.
transport
Enables SIP UA transport for TCP/UDP.
timers buffer-invite
To enable the Session Initiation Protocol (SIP) buffer-invite timer and to configure the timer interval, use the timers buffer-invite command in SIP user-agent configuration mode. To restore the default value, use the no form of this command.
Usage Guidelines
Use this command to enable the SIP buffer-invite timer and to configure the timer interval.
timers comet
To set how long the Session Initiation Protocol (SIP) user agent (UA) waits before retransmitting conditions-met (COMET) requests, use the timers cometcommand in SIP user-agent configuration mode. To reset to the default, use the no form of this command.
Command History
Release
Modification
12.2(2)XB
This command was introduced.
12.2(2)XB1
This command was implemented on Cisco AS5850.
12.2(8)T
This command was integrated into Cisco IOS Release 12.2(8)T. Support for the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 is not included in this release.
12.2(11)T
This command was inplemented on the Cisco AS5300, Cisco AS5350, and Cisco AS5400 in this release.
Usage Guidelines
COMET, or conditions met, indicates whether preconditions for a given call or session have been met. This command is applicable only with calls involving quality of service (QoS) (calls other than best-effort).
timers connect
To set how long the Session Initiation Protocol (SIP) user agent (UA) waits for a 200 response to an ACK request, use the timers connectcommand in SIP user-agent configuration mode. To reset to the default, use the no form of this command.
Command History
Release
Modification
12.1(1)T
This command was introduced on Cisco 2600 series, Cisco 3600 series, and Cisco AS5300.
12.1(3)T
This command was modified to change the names of the parameters. Two of the parameters (invite-wait-180 and invite-wait-200) were combined into one (trying).
12.2(2)XA
This command was implemented on the Cisco AS5350 and Cisco AS5400.
12.2(2)XB1
This command was implemented on the Cisco AS5850.
12.2(8)T
This command was integrated into Cisco IOS Release 12.2(8)T and implemented on Cisco 7200 series. Support for the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 is not included in this release.
timers connection aging
To globally set the time before the Session Initiation Protocol (SIP) user agent (UA) ages out a TCP or UDP connection because of inactivity, use the timers connection agingcommand in SIP user-agent configuration mode. To reset this time to the default value, use the no form of this command.
timers disconnect
To set how long the Session Initiation Protocol (SIP) user agent (UA) waits for a 200 response to a BYE request, use the timerscommand in SIP user-agent configuration mode. To reset to the default, use the no form of this command.
Command History
Release
Modification
12.1(1)T
This command was introduced on Cisco 2600 series, Cisco 3600 series, and Cisco AS5300.
12.1(3)T
This command was modified to change the names of the parameters. Two of the parameters (invite-wait-180 and invite-wait-200) were combined into one (trying).
12.2(2)XA
This command was implemented on the Cisco AS5350 and Cisco AS400.
12.2(2)XB1
This command was implemented on Cisco AS5850.
12.2(8)T
This command was integrated into Cisco IOS Release 12.2(8)T and implemented on Cisco 7200 series. Supported for the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 platforms is not included in this release.
Usage Guidelines
If you used the previous more generic timers command to configure timers, your previous timer settings are maintained. The output of the show running-config command reflects both timers.
To reset this command to the default value, you can also use the default command.
timers dns
To set how long the Session Initiation Protocol (SIP) user agent (UA) waits for the DNS resolved address cache, use the timersdnscommand in SIP user-agent configuration mode. To reset to the default, use the no form of this command.
Usage Guidelines
If you used the previous more generic timers command to configure timers, your previous timer settings are maintained. The output of the show running-config command reflects both timers.
To reset this command to the default value, you can also use the default command.
timers expires
To set how long a Session Initiation Protocol (SIP) INVITE request is valid, use the timerscommand in SIP user-agent configuration mode. To reset to the default, use the no form of this command.
Command History
Release
Modification
12.1(1)T
This command was introduced on the Cisco 2600 series, Cisco 3600 series, and Cisco AS5300.
12.1(3)T
This command was modified to change the names of the parameters. Two of the parameters (invite-wait-180 and invite-wait-200) were combined into one (trying).
12.2(2)XA
This command was implemented on the Cisco AS5350 and Cisco AS5400.
12.2(2)XB1
This command was implemented on the Cisco AS5850.
12.2(8)T
This command was integrated into Cisco IOS Release 12.2(8)T and implemented on the Cisco 7200 series. Support for the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 is not included in this release.
timers hold
To enable the Session Initiation Protocol (SIP) hold timer and configure the timer interval before disconnecting a held call, use the timers holdcommand in SIP user-agent configuration mode. To restore the default value, use the no form of this command.
Usage Guidelines
The hold timer is typically activated when a gateway receives a call hold request from the other endpoint, for example, a SIP phone.
timers keepalive
To set the keepalive timers interval between sending Options message requests when the session initiation protocol (SIP) servers are in the down state, use the timers keepalive command in SIP user agent configuration mode. To restore the keepalive timers to the default value of 120 seconds when active or 30 seconds when down, use the no form of this command.
Syntax Description
Command Default
The default value for the active state is 120 seconds and the default value for the down state is 30 seconds.
Usage Guidelines
Use this command to change the keepalive message time interval in seconds between the sending Options message requests when the SIP server or servers are either in the active or down state.
Examples
The following example sets the keepalive message time interval to 20 seconds when the SIP server is in the active state:
sip-ua timers keepalive active 20The following example sets the keepalive message time interval to 10 seconds when the SIP server is in the down state:
sip-ua timers keepalive down 10Related Commands
Command
Description
busyout monitor keepalive
Selects a voice port or ports to be busied out in cases of a keepalive failure.
keepalive target
Identifies a SIP server that will receive keepalive packets from the SIP gateway.
keepalive trigger
Sets number of Options message requests that must consecutively receive responses from the SIP servers in order to unbusy the voice ports when in the down state.
retry keepalive
Sets the retry keepalive count for retransmissions.
timers notify
To set how long the Session Initiation Protocol (SIP) user agent (UA) waits before retransmitting a Notify message, use the timers notifycommand in SIP user-agent configuration mode. To reset to the default, use the no form of this command.
Command History
Release
Modification
12.2(2)XB
This command was introduced.
12.2(2)XB2
This command was implemented on Cisco AS5850.
12.2(8)T
This command was integrated into Cisco IOS Release 12.2(8)T. Support for the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 is not included in this release.
Cisco IOS XE Release 2.5
This command was integrated into Cisco IOS XE Release 2.5.
Usage Guidelines
A Notify message informs the user agent that initiated the transfer or Refer request about the outcome of the SIP transaction.
timers prack
To set how long the Session Initiation Protocol (SIP) user agent (UA) wait s before retransmitting a provisional response acknowledgement (PRACK) request, use the timers prackcommand in SIP user-agent configuration mode. To reset to the default, use the no form of this command.
Command History
Release
Modification
12.2(2)XB
This command was introduced.
12.2(2)XB1
This command was implemented on Cisco AS5850.
12.2(8)T
This command was integrated into Cisco IOS Release 12.2(8)T. Support for the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 is not included in this release.
12.2(11)T
This command was applicable to the Cisco AS5300, Cisco AS5350, and Cisco AS5400 in this release.
Usage Guidelines
PRACK allows reliable exchanges of SIP provisional responses between SIP endpoints. When the retransmission value is set, retransmissions are sent with an exponential backoff of up to 4 seconds. That is, the retransmission interval for each packet increases exponentially until 4 seconds is reached.
timers refer
To set how long the Session Initiation Protocol (SIP) user agent (UA) waits before retransmitting a Refer request, use the timers refercommand in SIP user-agent configuration mode. To reset to the default, use the no form of this command.
Usage Guidelines
A SIP Refer request is sent by the originating gateway to the receiving gateway and initiates call forward and call transfer capabilities.
timers register
To set how long the Session Initiation Protocol (SIP) user agent (UA) waits before sending register requests, use the timers registercommand in SIP user-agent configuration mode. To reset this value to the default, use the no form of this command.
timers rel1xx
To set how long the Session Initiation Protocol (SIP) user agent (UA) waits before retransmitting a reliable1xx response, use the timers rel1xx command in SIP user-agent configuration mode. To reset to the default, use the no form of this command.
Command History
Release
Modification
12.2(2)XB
This command was introduced.
12.2(2)XB1
This command was implemented on Cisco AS5850.
12.2(8)T
This command was integrated into Cisco IOS Release 12.2(8)T. Support for the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 is not included in this release.
12.2(11)T
This command is supported on the Cisco AS5300, Cisco AS5350, and Cisco AS5400 in this release.
timers trying
To set how long the Session Initiation Protocol (SIP) user agent (UA) wait s for a 100 response to a SIP INVITE request, use the timerscommand in SIP user-agent configuration mode. To reset to the default, use the no form of this command.
Command History
Release
Modification
12.1(1)T
This command was introduced on the Cisco 2600 series, Cisco 3600 series, and Cisco AS5300.
12.1(3)T
This command was modified to change the names of the parameters. Two of the parameters (invite-wait-180 and invite-wait-200) were combined into one (trying).
12.2(2)XA
This command was implemented on Cisco AS5350 and Cisco AS5400.
12.2(2)XB1
This command was implemented on Cisco AS5850.
12.2(8)T
This command was integrated into Cisco IOS Release 12.2(8)T and implemented on Cisco 7200 series routers. Support for the Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 is not included in this release.
timing clear-wait
To set the minimum amount of time between the inactive seizure signal and the call being cleared for a specified voice port, use the timing clear-waitcommand in voice-port configuration mode. To reset to the default, use the no form of this command.
Examples
The following example sets the clear-wait duration on a voice port to 300 milliseconds:
voice-port 1/0/0 timing clear-wait 300Related Commands
Command
Description
timeouts initial
Configures the initial digit timeout value for a specified voice port.
timeouts interdigit
Configures the interdigit timeout value for a specified voice port.
timeouts wait-release
Configures the timeout value for releasing voice ports.
timing delay-duration
Specifies the delay signal duration for a specified voice port.
timing delay-start
Specifies the minimum delay time from outgoing seizure to out-dial address for a specified voice port.
timing delay-with-integrity
Specifies the duration of the wink pulse for the delay dial for a specified voice port.
timing dialout-delay
Specifies the dialout delay for the sending digit on a specified voice port.
timing dial-pulse min-delay
Specifies the time between wink-like pulses for a specified voice port.
timing digit
Specifies the DTMF digit signal duration for a specified voice port.
timing interdigit
Specifies the DTMF interdigit duration for a specified voice port.
timing percentbreak
Specifies the percentage of a break period for a dialing pulse for a specified voice port.
timing pulse
Specifies the pulse dialing rate for a specified voice port.
timing pulse-interdigit
Specifies the pulse interdigit timing for a specified voice port.
timing wink-duration
Specifies the maximum wink signal duration for a specified voice port.
timing wink-wait
Specifies the maximum wink-wait duration for a specified voice port.
