ZyXEL Communications P-27xx Series User Manual page 21

The following table describes the labels in this screen.
Table 3 SIP Setting
LABEL
Forward Setting
Immediate
Forward to
Immediate
Number
Busy Forward to Select Enable to turn this feature on, and Off to disable it.
Busy Number
No Answer
Forward to
No Answer
Number
No Answer
Time (sec)
Fax Option
G.711 Fax
Passthrough
T.38 Fax
Relay
P-Asserted-
Identity
Dial
Termination Key
P-27XX Series User's Guide
DESCRIPTION
Select Enable to turn this feature on, and Off to disable it.
When enabled, all incoming calls are forwarded immediately to the
Immediate Number.
Enter a SIP number to receive calls forwarded from the ZyXEL Device.
When enabled, incoming calls are forwarded to the Busy Number if
they receive a busy signal from the ZyXEL Device.
Enter a SIP number to receive calls forwarded from the ZyXEL Device.
Select Enable to turn this feature on, and Off to disable it.
When enabled, calls that receive no answer after the No Answer Time
has passed are forwarded to the No Answer Number.
Enter a SIP number to receive calls forwarded from the ZyXEL Device.
Enter the number of seconds the ZyXEL Device waits while an incoming
call goes unanswered. Once this duration has expired, the incoming
calls is forwarded to the No Answer Number.
Select this if the ZyXEL Device should use G.711 to send fax messages.
The peer devices must also use G.711.
Select this if the ZyXEL Device should send fax messages as UDP
packets through IP networks.
This provides better quality, but it may have inter-operability problems.
The peer devices must also use T.38.
The SIP server authenticates the user that sent the SIP request and
then uses the identity which results from the authentication to generate
a P-Asserted-Identity header field.
Select Enable to have the ZyXEL Device look at the P-Asserted-Identity
header field which carries the identity of the caller in SIP messages, and
display the coller's name and location if available.
Select Enable if you want to use the pound key (#) to tell the ZyXEL
Device to make the phone call immediately, instead of waiting the
number of seconds you selected in the Interdigit Pause Duration
field of the VoIP > Phone > Common screen.
If you select this, dial the phone number, and then press the pound key.
The ZyXEL Device makes the call immediately, instead of waiting. You
can still wait, if you want.
Chapter 3 Phone Use and Configuration
21