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VoIP remote PSTN line

Hi, this should be a simple scenario but for some reason it is not working.

We have two sites as follows:

Site A Site B

PSTN -- FXO -- WAN -- FXS -- Phone

The purpose of course is to have a local number on Site A ringing across the WAN on site B, this is working perfectly using connection plar on the FXO voice port.

Aditionally we wish to have access to that PSTN line from site B in order to make local calls, and this is what doesn't work.

The configurations are like this:

Site A

voice-port 1/0/0

connection-plar 920

dial-peer voice 920 voip

destination-pattern 920

session target ipv4:

codec g711u

no vad

dial-peer voice 33 pots

destination-pattern 33........

port 1/0/0

Site B

voice-port 0/0/0

dial-peer voice 920 pots

destination-pattern 920

port 0/0/0

dial-peer voice 33 voip

destination-pattern 33.......

session target ipv4:

codec g711u

no vad

Is the connection plar on the voice-port on site A an issue?

I am pretty sure this should work the way it is setup, but for some reason I get a busy tone when dialing from site B.

I tried csim start tests directly from the router on site A to local numbers and the call completes with no problem, so no issues there.

Has anybody seen anything like this?

Any help will be greatly appreciated.


Hall of Fame Super Silver

Re: VoIP remote PSTN line

I am assuming you do not have CCM or CCME to control the analog phone, have you tried adding "station-id 920" to the FXS port, and at the same time modify dial-peer 920 on site B to include the following command

"forward-digits all"?


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