Firmware Version 1.0.1.20 - Grandstream Networks GXV3275 Administration Manual

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 1.0.1.20

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. The default setting is "default": the Privacy Header will
show in INVITE unless "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.
Controls whether the P-Preferred-Identity Header will present in the SIP
INVITE message or not. 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 permanent
GXV3275 Administration Guide Page 41 of 77