User manual

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Min-SE
The minimum session expiration (in seconds). The default value is 90
seconds.
Caller Request
Timer
If selecting “Yes” the phone will use session timer when it makes
outbound calls if remote party supports session timer.
Callee Request
Timer
If selecting “Yes” the phone will use session timer when it receives
inbound calls with session timer request.
Force Timer
If selecting “Yes” the phone will use session timer even if the remote
party does not support this feature. Selecting “No” will allow the phone
to enable session timer only when the remote party support this feature.
To turn off Session Timer, select “No” for Caller Request Timer, Callee
Request Timer, and Force Timer.
UAC Specif
y
Refresher
As a Caller, select UAC to use the phone as the refresher, or UAS to use
the Callee or proxy server as the refresher.
UAS Specif
y
Refresher
As a Callee, select UAC to use caller or proxy server as the refresher, or
UAS to use the phone as the refresher.
Force INVITE
Session Timer can be refreshed using INVITE method or UPDATE
method. Select “Yes” to use INVITE method to refresh the session
timer.
Enable 100rel
The use of the PRACK (Provisional Acknowledgment) method enables
reliability to be offered to SIP provisional responses (1xx series). This
is very important if PSTN internetworking is to be supported. A user’s
wish to use reliable provisional responses is invoked by the 100rel tag
which is appended to the value of the required header of initial
signalling messages.
Account Ring Tone
There are 4 different ring tone that are defined:
• System Ring Tone: when selected, all calls will ring with
system ring tone.
• Customer Ring Tone 1 to 3: when selected, GXP-2000 will
ONLY play this ring tone for all the incoming calls for this
account.
Send Anonymous
If this parameter is set to “Yes”, the “From” header in outgoing INVITE
message will be set to anonymous, essentially blocking the Caller ID
from displaying.
Auto Answer
When set to “Yes”, GXP-2000 will automatically switch to speaker
when there is an incoming call.
Allow Auto Answer
by Call-Info
Default is No. If set to Yes, auto answer depends on the Call-Info in the
SIP message. This feature needs the support of IP-PBX.