Grandstream GXP1100 User Manual - Manual (Page 34)

FIRMWARE VERSION 1.0.8.4 GXP1100/GXP1105 USER MANUAL Page 32 of 53
P-Preferred-Identity Header will show in INVITE unless "Huawei IMS" special
feature is on.
If set to "Yes", the P-Preferred-Identity Header will always show in INVITE.
If set to "No", the P-Preferred-Identity Header will not show in INVITE.
Ignore Alert-Info header Configured default ringtone will be played by ignoring Alter-Info header.
Account 1 -> SIP Settings -> Advanced Features
Conference URI Configures the Conference URI when using Broadsoft N-way calling feature.
Music On Hold URI
Configures Music On Hold URI to call when a call is on hold. This feature has
to be supported on the server side.
Special Feature
Different soft switch vendors have special requirements. Therefore users may
need select special features to meet these requirements. Users can choose
from Standard, Nortel MCS, Broadsoft, CBCOM, RNK, Sylantro or Huawei
IMS depending on the server type. The default setting is "Standard".
Account 1 -> SIP Settings -> Session Timer
Session Expiration
The SIP Session Timer extension 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 value is 180 seconds.
Min-SE
The minimum session expiration (in seconds). The default value is 90
seconds.
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.
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.
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".
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.
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.
Force INVITE
The Session Timer can be refreshed using the INVITE method or the UPDATE
method. Select "Yes" to use the INVITE method to refresh the session timer.
Account 1 -> SIP Settings -> Security Settings