Grandstream GXV3240 Administration Guide - Manual (Page 55)

Firmware Version 1.0.3.37 GXV3240 Administration Guide Page 53 of 117
SIP 200 OK will include the content “refresher=uas”. The default
setting is "No".
Force Timer
It is used to active the session timer feature on the phone system by
force. If it is set to "Yes", the phone will use the session timer even if
the remote party does not support this feature. If it 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".
Enable 100rel
It is used to active the PRACK (Provisional Acknowledgment) method.
It is very important in order to support PSTN internetworking. PRACK
improves the network reliability by adding an acknowledgement
system to the provisional Responses (1xx). It is set to “Yes”, the phone
system will response to the 1xx response from the remote party. The
default setting is "No".
Caller ID Display
It is used to set which header tag will be used from the SIP INVITE
message for the Caller ID display. If it is set to Auto, the phone system
will use the one of the available headers in the priority hierarchy of P-
Asserted Identify Header, Remote-Party-ID Header and From Header.
If it is set to “From Header”, it will use the From Header information for
the Caller ID. If it is set to “Disabled”, all the incoming calls Caller ID
will be displayed with “Unavailable”. The default setting is “Auto”.
Use Privacy Header
It is used to set if the Privacy header will be presented in the SIP
INVITE message and if it includes the caller info in this header. If it is
set to "Default", the Privacy Header will be omitted in INVITE when
"Huawei IMS" special feature is active. If set to "Yes", it will always be
presented. If set to "No", it will always be omitted. The default setting
is "Default".
Use P-Preferred-Identity
Header
It is used to set if the P-Preferred-Identity Header will be presented in
the SIP INVITE message. If set to “default", the P-Preferred-Identity
Header will be omitted in SIP INVITE message when "Huawei IMS"
special feature is active. If set to "Yes", the P-Preferred-Identity Header
will always be presented. If set to "No", it will be omitted. The default
setting is "Default".
SIP Transport
It is used to set which network protocol will be used to transport the
SIP message. It can be selected from TCP/UDP/TLS. The default
setting is "UDP".
SIP URI Scheme When Using
TLS
It is used to set which SIP header, "sip" or "sips", will be used if TLS is
selected for SIP Transport. The default setting is "sip".
Use Actual Ephemeral Port in It is used to set the port information in the Via header and Contact