H.323 Profile Timers

 

 

Default timer values are initiated during the Call Setup period. The H.323 Profile Timers object allows the user the ability to modify each the separate timer values. The ability to modify these values facilitates interworking between devices in the H.323 network. Each of the timer values can be modified as needed. Refer to information below.

If changes are made to the default timer values, and then at a later date the object is deleted, the modified timer values will not be set back to their default values even if the object is deleted and re-added. The modifications made on the initial H.323 Timers object will be carried over to the newly re-added H.323 Timers object. To revert back to the default values, each individual timer that was initially modified must be manually set back to its default value.

Web GUI Page

Dialogic > IMG 2020 > Profiles > H323 Profiles > H323 Profile > New H323 Profile Timers

 

Maximum Objects

One H.323 Profile Timers object can be created per H.323 signaling stack.

Related Topics and Dependencies

The H323 Profile Timers object is created under the H323 Profile object. The H.323 Profile created can be linked to the External Gateway object configured for H.323, the External Gatekeepers object, and the Alternate Gatekeeper object.

H.323 Profile

External Gateway

External Gatekeeper

Alternate Gatekeeper

Field Descriptions

To modify any of the following timer values, in the Web GUI, highlight the value in the white box that corresponds to the Timer being modified and enter the new value.

H225 T301 (Default = 180 seconds)

Timer T301 defines how long the calling element shall wait for the called element to respond. This timer starts when Alerting is received and normally terminates on Connect or when the caller terminates the call attempt and sends Release Complete. The valid range of values is 18000-65000*(10 ms). (180-650 seconds) 

H225 T303 (Default = 4 seconds)

Timer T303 defines how long the calling element shall wait for an Alerting, Call Proceeding, Connect, Release Complete or other message from the called element after it has sent a Setup message. The valid range of values is 400-30000*(10 ms). (4-300 seconds) 

H225 T310 (Default = 10 seconds)

Timer T310 defines how long the calling element shall wait for an Alerting, Connect, Release Complete or other message from the called element after it has received a Call Proceeding message. The valid range of values is 1000-60000*(10 ms). (10-600 seconds) 

H245 T101 (Default = 30 seconds)

Timer T101 is used in the Capability Exchange procedure.  It specifies the maximum time during which no TerminalCapabilitySetAck or TerminalCapabilitySetReject message may be received. The valid range of values is 300-30000*(10 ms). (3-300 seconds)

H245 T103 (Default = 30 seconds)

Timer T103 is used in Unidirectional and Bidirectional Logical Channel Signaling procedure.  It specifies the maximum time during which no OpenLogicalChannelAck or OpenLogicalChannelReject or CloseLogicalChannelAck message may be received. The valid range of values is 300-30000*(10 ms). (3-300 seconds)

H245 T105 (Default = 5 seconds)

Timer T105 is used for Round-Trip Delay procedure.  It specifies the maximum time during which no RoundTripDelayResponse message may be received. The valid range of values is 300-5000*(10 ms). (3-50 seconds)

H245 T106 (Default = 30 seconds)

Timer T106 is used in the Master-Slave Determination procedure.  It specifies the maximum time during which no acknowledgement message may be received. The valid range of values is 300-30000*(10 ms). (3-300 seconds)

H245 T108 (Default = 30 seconds)

Timer T108 is used in the Close Logical Channel procedure.  It specifies the maximum time during which no RequestChannelCloseAck or RequestChannelCloseReject message may be received. The valid range of values is 300-30000*(10 ms). (3-300 seconds)

H245 T109 (Default = 30 seconds)

Timer is used in the Mode Request procedure.  It specifies the maximum time during which no RequestModeAck or RequestModeReject message may be received. The valid range of values is 300-30000*(10ms). (3 -300 seconds)

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