Grandstream Networks GXV3240D Administration Manual page 41

Force INVITE
Caller Request Timer
Callee Request Timer
Force Timer
Enable 100rel
Use Privacy Header
Use P-Preferred-Identity
Header
SIP Transport
SIP URI Scheme When Using
TLS
Use Actual Ephemeral Port in
Contact with TCP/TLS
Firmware Version 1.0.1.54
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. The default setting is "No".
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".
If set to "Yes" and the remote party supports session timers, the
phone will use a session timer when it receives inbound calls. The
default setting is "No".
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".
The use of the PRACK (Provisional Acknowledgment) method
enables reliability to SIP provisional responses (1xx series). This is
very important in order 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".
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".
Controls whether the P-Preferred-Identity Header will present in the
SIP INVITE message. The default setting is "default": the
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.
Determines the network protocol used for the SIP transport. Users
can choose from TCP/UDP/TLS. The default setting is "UDP".
Specifies if "sip" or "sips" will be used when TLS/TCP is selected for
SIP Transport. The default setting is "sip".
This option is used to control the port information in the Via header
and Contact header. If set to No, these port numbers will use the
GXV3240D Administration Guide Page 41 of 83