Grandstream Networks GRP2601 Administration Guide

P a g e | 42
GRP260x Administration Guide
Version 1.0.1.18
• In route
• Not in route
• Always send to
Default is “in route”.
Enable 100rel
The use of the PRACK (Provisional Acknowledgment) method enables
reliability to SIP provisional responses (1xx series). This is very important to
support PSTN internetworking. To invoke a reliable provisional response, the
100rel tag is appended to the value of the required header of the initial
signaling messages. The default setting is “No”.
Session Timer
Enable Session Timer
This option is used to enable or disable session timer on the phone side
when server side can provide both session timer UPDATE and session audit
UPDATE. The default setting is “No”.
Session Expiration
The SIP Session Timer extension (in seconds) that enables SIP sessions to
be periodically “refreshed” via a SIP request (UPDATE, or re-INVITE). If
there is no refresh via an UPDATE or re-INVITE message, the session will
be terminated once the session interval expires. Session Expiration is the
time (in seconds) where the session is considered timed out, provided no
successful session refresh transaction occurs beforehand. The default
setting is 180. The valid range is from 90 to 64800.
Min-SE
The minimum session expiration (in seconds). The default value is 90
seconds. The valid range is from 90 to 64800.
Caller Request Timer
If set to “Yes” and the remote party supports session timers, the phone will
use a session timer when it makes outbound calls. The default setting is “No”.
Callee Request Timer
If set to “Yes” and the remote party supports session timers, the phone will
use a session timer when it receives inbound calls. Default setting is “No”.
Force Timer
If Force Timer is set to “Yes”, the phone will use the session timer even if the
remote party does not support this feature. If Force Timer is set to “No”, the
phone will enable the session timer only when the remote party supports this
feature. To turn off the session timer, select “No”. The default setting is “No”.
UAC Specify Refresher
As a Caller, select UAC to use the phone as the refresher; or select UAS to
use the Callee or proxy server as the refresher. The default setting is “UAC”.
UAS Specify Refresher
As a Callee, select UAC to use caller or proxy server as the refresher; or
select UAS to use the phone as the refresher. The default setting is “UAC”.

Grandstream Networks GRP2601 Specifications

General

Brand	Grandstream Networks
Model	GRP2601
Category	IP Phone
Language	English