VoIP link / FXS-to-FXS

[macanudo]

Hi people,

I have a VoIP link between two branches, which happen to be trading offices. We need a line to be connected at all times, like the lines that bind squak boxes together.

We are using the multicasting solution (hoot-n-holler) with FXS interfaces on each side. At the time of the setup this somehow worked, but for some reason it now works one-way only.
I can speak from one side and be heard on the other side, but not the other way round.

Has anyone done this with two FXSs? I know this works with legacy equipment, as a matter of fact that is what we have running in some other places, but I wonder about the signalling when both interfaces happen to be FXS.

This is the voice port and dialpeer config of one of the routers involved:

!
voice-port 1/0/0
voice-class permanent 1
echo-cancel coverage 32
timeouts wait-release 3
connection trunk 111
music-threshold -30
!
!
dial-peer voice 111 voip
destination-pattern 111
session protocol multicast
session target ipv4:237.111.0.111:22222
dtmf-relay cisco-rtp h245-signal h245-alphanumeric
ip precedence 5
!

Ideas appreciated.

Cheers, Gabriel.

 

[BuckWeet]

Where are the dial-peers that point to the voice ports?

should be a dial-peer labeled like "dial-peer voice XX pots" and it should have a statement under it saying voice-port 1/0/0 or whatever


BuckWeet

 

[macanudo]

Do I need a dial-peer for that port?
I was told not to include one, because of the 'multicasting nature', so I removed them from the config.

Gabriel.