IP Phone Administrator Guide

Operational, Basic, and Advanced Parameters

Appendix A

Parameter sip session timer

Session Timer

(in Web UI)

Description

Format

Default Value

Range

Example

Aastra Web UI Advanced Settings->Global SIP-> Advanced SIP Settings

Configuration Files aastra.cfg, <mac>.cfg

The time, in seconds, that the IP phone uses to send periodic re-INVITErequests to keep a session alive. The proxy uses these re-INVITErequests to maintain the status' of the connected sessions. See RFC4028 for details.

Integer

0

Not Applicable

sip session timer: 30

Parameter

Aastra Web UI

Advanced Settings->Global SIP->

sip T1 timer

 

Advanced SIP Settings

T1 Timer

Configuration Files

aastra.cfg, <mac>.cfg

 

 

(in Web UI)

 

 

 

 

Description

This timer is a SIP transaction layer timer defined in RFC 3261.

 

Timer 1 is an estimate, in milliseconds, of the round-trip time (RTT).

 

 

 

Format

Integer

 

 

 

 

Default Value

500

 

 

 

 

Range

Not Applicable

 

 

 

 

Example

sip T1 timer: 600

 

 

 

 

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Aastra Telecom 480I CT manual Parameter sip session timer, Description Format Default Value Range Example