Linksys RTP300 User Guide - Page 76

Configuring the PSTN (FXO) Gateway How VoIP-To-PSTN Calls Work match one of the VoIP accounts stored on the Linksys ATA device. Each VoIP user account contains the information listed below. Parameter Web Page Description Values User ID 1/2/3/4/ PSTN Line The username value. 5/6/7/8 31-character string Password 1/2/3/ PSTN Line The password value. 4/5/6/7/8 31-character string User 1/2/3/4/5/ PSTN Line 6/7/8 DP Specifies the dial plan to be used for this VoIP user. If Choice of 0-8 0, dial plan processing is disabled; the given target number is dialed to the PSTN as is. NOTE: If Authentication is disabled, a default dial plan is used for all unknown VoIP users. Two-Stage Dialing In two-stage dialing, the Linksys ATA device takes the FXO port off-hook but does not automatically dial any digits after accepting the call. To invoke two-stage dialing, the VoIP caller should INVITE the PSTN Line without the user-id in the Request-URI or with a user-id that matches exactly the of the PSTN Line. A different user-id in the Request-URI is treated as a request for one-stage dialing if one-stage dialing is enabled, or dropped by the Linksys ATA device (as if no user-id is given) if one-stage dialing is disabled. NOTE: If Authentication is disabled, a default dial plan is assigned to all VoIP callers. HTTP Digest Authentication can be also used for two-stage dialing, as in one-stage dialing. If using HTTP Digest Authentication or Authentication is disabled, the VoIP caller should hear the PSTN dial tone right after the call is answered (by a SIP 200 response). If PIN Authentication is enabled, the VoIP caller is prompted to enter a PIN number after the Linksys ATA device answers the call. The PIN number must end with a # key. The inter-PIN-digit timeout is 10 seconds (not configurable). Up to eight VoIP caller PIN numbers can be configured on the Linksys ATA device. A dial plan can be selected for each PIN number. If the caller enters a wrong PIN or the Linksys ATA device times out waiting for more PIN digits, the Linksys ATA device tears down the call immediately with a BYE request. NOTE: When the source address of the INVITE is 127.0.0.1, authentication is automatically disabled because this is a call by the local user. This applies to both one-stage and two-stage dialing. The following table lists the parameters used in two-stage dialing. Parameter VoIP Caller 1/2/3/4/ 5/6/7/8 PIN VoIP Caller 1/2/3/4/ 5/6/7/8 DP Web Page PSTN Line PSTN Line Description Values The PIN for VoIP Caller 1, 2, 3, 4, 5, 6, 7, or 8. 31-character string Specifies which dial plan to be used for this VoIP Choice of 1 to 8 caller. If 0, dial plan processing is disabled; the given target number is dialed to the PSTN as is. Linksys ATA Administration Guide 76