Chapter 3 Phone Use and Configuration

The following table describes the labels in this screen.

Table 3 SIP Setting

LABEL

DESCRIPTION

Forward Setting

 

 

 

Immediate

Select Enable to turn this feature on, and Off to disable it.

Forward to

When enabled, all incoming calls are forwarded immediately to the

 

 

Immediate Number.

 

 

Immediate

Enter a SIP number to receive calls forwarded from the ZyXEL Device.

Number

 

 

 

Busy Forward to

Select Enable to turn this feature on, and Off to disable it.

 

When enabled, incoming calls are forwarded to the Busy Number if

 

they receive a busy signal from the ZyXEL Device.

 

 

Busy Number

Enter a SIP number to receive calls forwarded from the ZyXEL Device.

 

 

No Answer

Select Enable to turn this feature on, and Off to disable it.

Forward to

When enabled, calls that receive no answer after the No Answer Time

 

 

has passed are forwarded to the No Answer Number.

 

 

No Answer

Enter a SIP number to receive calls forwarded from the ZyXEL Device.

Number

 

 

 

No Answer

Enter the number of seconds the ZyXEL Device waits while an incoming

Time (sec)

call goes unanswered. Once this duration has expired, the incoming

 

calls is forwarded to the No Answer Number.

 

 

Fax Option

 

 

 

G.711 Fax

Select this if the ZyXEL Device should use G.711 to send fax messages.

Passthrough

The peer devices must also use G.711.

 

 

T.38 Fax

Select this if the ZyXEL Device should send fax messages as UDP

Relay

packets through IP networks.

 

This provides better quality, but it may have inter-operability problems.

 

The peer devices must also use T.38.

 

 

P-Asserted-

The SIP server authenticates the user that sent the SIP request and

Identity

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.

 

 

Dial

Select Enable if you want to use the pound key (#) to tell the ZyXEL

Termination Key

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.

 

 

 

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P-27XX Series User’s Guide