Using remote CME to make PSTN calls

[Jean-Francois Anfossi]

Hi,

Im a tring to setup the dial-peers on both my CME to send PSTN traffic from CME A who has the IP phones, and CME B who has the POTS.

How can I setup dial-peer in A and B ?

Thank you

[Anas Abueideh · Accepted solution]

Hi,

you need to configure voip dial-peer between CME A and B. let us assume your extensions are 2XX, and your ip addresses are 10.100.10.1 for CME A , 10.100.11.1 for CME B

CME-A config

-------------------------------

dial-peer voice 100 voip

  incoming called-number .

destination-pattern .T

session target ipv4:10.100.11.1

dtmf-relay h245-alphanumeric h245-signal

no vad

CME-B Config

------------------------------

dial-peer voice 100 voip

incoming called-number .

destinatin-pattern 2..$

session target ipv4:10.100.10.1

dtmf-relay h245-alphanumeric h245-signal

no vad

HTH

Anas

please rate if it is helpful

[Jean-Francois Anfossi]

I copy /paste your config in both my CME routers and it works great. - Thank you.

I have not seen these commands yet, not sure they are part of the CCNA UC curriculum. Can you explain call flow ?

I will review the commands and try to make the match. Thanks again !

[Jean-Francois Anfossi]

Just testing, DTMF tones are not going thru from Router A (from 7961 IP phones and CIPC), but OK from Router B (router with the POTS)

Will keep looking.....

[Anas Abueideh]

Hi,

try to configure transcoder on router B and check if it is working.

thanks for the rating

HTH

Anas

please rate if it is helpful

[Jean-Francois Anfossi]

And how would that go ?

The DTMF are working OK when the call is made from Router B, it is only when I make the calls from Router A using ephones tandeming to Router B that the DTMF tones are'nt going thru.