Forward-On-No-Answer To The Pstn Gateway; Forward-All To The Pstn Gateway; Forward To A Particular Pstn Number; Forward-On-Busy To Pstn Gateway Or Number - Linksys SPA1001 Administrator User Manual

Chapter 4 Configuring the PSTN Gateway (FXO)

Forward-On-No-Answer to the PSTN Gateway

In this scenario, Line 1 is configured to <Forward-On-No-Answer> to the PSTN Gateway. The scenario
is implemented by setting User 1 to forward to gw0 on no answer, with <No Answer Delay> set to six
seconds.
The caller calls Line 1 and if Line 1 is not picked up after six seconds, the PSTN Line picks up the call
and the call reverts to a PSTN-Gateway call, as described above. In this case, HTTP authentication is
not allowed because Line 1 does not authenticate inbound INVITE requests. If you need to authenticate
the VoIP caller in this case, you must select the PIN authentication method, or else the caller is not
authenticated.
If the PSTN Line is busy at the moment of the forward, it does not answer the VoIP call. The call forward
Note
rule is ignored and Line 1 continues to ring.

Forward-All to the PSTN gateway

In this scenario, Line 1 is configured with <Forward-All> to the PSTN gateway.This scenario is the same
the previous case, except the FXO picks up the Line 1 call immediately.
If the PSTN Line is busy at the moment of the call, the PSTN Line does not pick up the call, the call
forward rule is ignored, and Line 1 continues to ring.

Forward to a Particular PSTN Number

In this scenario, the forward destination is set to <target-number>@gw0>. This is the same as in the
previous examples , except that the SPA3102 automatically dials the given target number on the PSTN
line right after it answers the VoIP call leg. This is a special case of one-stage dialing where the target
number is specified in the configuration. The caller is not authenticated in this case regardless of the
authentication method. However, the caller is still limited by the <VoIP Caller ID Pattern> parameter

Forward-On-Busy to PSTN Gateway or Number

This scenario is similar to the previous cases of call forwarding to gw0, but this applies when Line 1 is
active.

Forward-Selective to PSTN Gateway or Number

This scenario is similar to the previous cases of call forwarding to gw0, but this applies when the caller
matches the specific caller-id pattern.

User Dialing 9 to Access PSTN-Gateway for Local Calls

To implement this scenario, add the rule "<9,:1408>xxxxxxx<:@gw0>" to the Line 1 dial plan. When
user dials 9, SPA3102 plays outside dial tone. The user then dials seven digits and the SPA3102
prepends 1408 before dialing the final number on the PSTN line.
Document Version 3.1
Call Scenarios
Linksys ATA Administrator Guide
4-11