Grandstream GVC3200 Administration Guide - Manual (Page 34)

Firmware Version 1.0.1.5 GVC3200 Administration Guide Page 33 of 61
Force INVITE
It is used to set the SIP message type for refresh the session. If it is set to “Yes”, the
Session Timer will be refreshed by using the SIP INVITE message. Otherwise, the
GVC3200 system will use the SIP UPDATE or SIP OPTION message. The default
setting is "No".
Caller Request
Timer
This is used to set the caller party to act as refresher by force. If set to "Yes" and the
both party support session timers, the phone will enable the session timer feature
when it makes outbound calls. The SIP INVITE will include the content
“refresher=uac”. The default setting is "No".
Callee Request
Timer
This is used to set the callee party to act as refresher by force. If set to "Yes" and the
both parties support session timers, the phone will enable the session timer feature
when it receives inbound calls. The 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 GVC3200 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 GVC3200 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 GVC3200 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
Controls whether the Privacy header will present in the SIP INVITE message or not,
whether the header contains the caller info. When set to "default", the Privacy
Header will show in INVITE only when "Huawei IMS" special feature is on. If set to
"Yes", the Privacy Header will always show in INVITE. If set to "No", the Privacy
Header will not show in INVITE. 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".