Grandstream Networks GHP6 Series - SIP User-Agent; Caller ID Display; SIP Settings - Session Timer; Session Expiration

SUBSCRIBE for MWI
Default isNo. When set to Yes, a SUBSCRIBE for Message Waiting Indication will be
sent periodically.
Enable 100rel Enables the use of PRACK (Provisional Acknowledgment) method.
SIP User-Agent
Allow users to configure SIP User-Agent and SIP User-Agent Postfix. The User-
Agent header is constructed from these two, if not configured, the User-Agent
header will use the default one.
SIP User-Agent Postfix Allow users to configure SIP User-Agent Postfix.
TEL URI
The default setting is “Disabled”. If the phone has an assigned PSTN Number, this
field should be set to “User=Phone” then a “User=Phone” parameter will be attached
to the “From header” in the SIP request to indicate the E.164 number. If server
supports TEL URI format, then this option needs to be selected.
Use Request Routing ID in SIP Headers
Default isNo. If set to Yes, device will use the configured [Request URI Routing ID] in
the SIP Header. This option is usually used under a SIP trunk account’s configuration.
Do Not Escape ‘#’ as %23 in SIP URI If set to “Yes”, device will use ‘#’ instead of %23 in the send URI.
Disable Multiple m Line in SDP
Default isNo. If set to Yes, device will send only one m line in SDP, regardless how
many m field in the incoming SDP.
Use Privacy Header
If set toDefault, it will only add Privacy or PPI header when special feature is
notTelkom SAorCBCOM.
Use P-Preferred-Identity Header
If set toDefault, it will only add Privacy or PPI header when special feature is
notTelkom SAorCBCOM.
SIP REGISTER Contact Header Uses
Default isLAN Address. If set toWAN Address, device will detect its WAN address
and use it in SIP REGISTER Contact Header.
Caller ID Display
When set to “Auto”, the phone will look for the caller ID in the order of P-Asserted
Identity Header, Remote-Party-ID Header and From Header in the incoming SIP
invite. When set to “Disabled”, All incoming calls are displayed with “Unavailable”.
Use Actual Ephemeral Port in Contact
with TCP/TLS
Controls the port information in the Via header and Contact header when TCP/TLS is
selected for SIP Transport: If set toNo(Default), these port numbers will use the
permanent listening port on the device. Otherwise, they will use the ephemeral port
for the connection.
SIP Settings – Session Timer
Session Expiration
The session timer extension enables SIP sessions to be periodically “refreshed” via
a SIP request (UPDATE, or re-INVITE. When the session interval expires, if there is
no refresh via a UPDATE or re-INVITE message, the session will be
terminated.Session Expiration is the time (in seconds) at which the session is
considered timed out, if no successful session refresh transaction occurs
beforehand. The default value is180 seconds.
Min-SE The minimum session expiration (in seconds). The default value is90 seconds.
Caller Request Timer
If selecting “Yes” the phone will use session timer when it makes outbound calls if
remote party supports session timer.
Callee Request Timer
If selecting “Yes” the phone will use session timer when it receives inbound calls
with session timer request.
Force Timer
If selecting “Yes” the phone will use session timer even if the remote party does not
support this feature. Selecting “No” will allow the phone to enable session timer only
when the remote party support this feature. To turn off Session Timer, select “No” for
Caller Request Timer, Callee Request Timer, and Force Timer.
UAC Specify Refresher
As a Caller, select UAC to use the phone as the refresher, or UAS to use the Callee or
proxy server as the refresher.
UAS Specify Refresher
As a Callee, select UAC to use caller or proxy server as the refresher, or UAS to use
the phone as the refresher.