Call Forwarding To Pstn Gateway - Linksys RTP300 - Broadband Router With 2 Phone Ports Administration Manual

Call Forwarding to PSTN Gateway

This section describes a number of scenarios that forward calls to the PSTN gateway. It includes
the following topics:
"Forward-On-No-Answer to the PSTN Gateway" section on page 85
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"Forward-All to the PSTN gateway" section on page 85
•
"Forward to a Particular PSTN Number" section on page 85
•
"Forward-On-Busy to PSTN Gateway or Number" section on page 85
•
Forward-On-No-Answer to the PSTN Gateway
In this scenario, Line 1 is configured to Cfwd No Ans Dest to the PSTN Gateway. The scenario is
implemented by setting User 1 to forward to gw0 on no answer, with Cfwd No Ans 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.
NOTE: If the PSTN Line is busy at the moment of the forward, it does not answer the VoIP call.
The call forward rule is ignored and Line 1 continues to ring.
Forward-All to the PSTN gateway
In this scenario, Line 1 is configured with Cfwd All Dest parameter 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 Linksys ATA device 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.
Linksys ATA Administration Guide
Configuring the PSTN (FXO) Gateway
Call Scenarios
85