FXO inbound configuration

[TrickTrick]

Hello everybody,

My client is subscribed to a telephony provider (analogical lines) and need to make those lines reachable through CCX call center

he already has an FXO card (4 RJ11 ports) installed in the H323 voice gateway, since i've never done this before I'm looking for a doc on how to configure FXO inbound lines, my client doesn't need them for the outbound anyway

Can you please share any helpful documentation ? Thanks

 EDIT :

more details : I want that each FXO port forward the call to the CCX trigger so the call center can answer all the calls coming from the 4 FXO ports, how can I proceed ?

[TrickTrick]

Any ideas please ?

[Chris Deren]

Create PLAR OPX (https://www.cisco.com/c/en/us/support/docs/voice/h323/14368-plar-config.html) on the analog ports on GW that point to the CTI Route point associated with he CCX application, make sure there is a dial-peer on the GW that points this call to CUCM, and that the ingress H323 GW has proper calling search space applied that can reach the CTI RP and CTI Ports associated with CCX.

[TrickTrick]

Thanks for your reply,

just to make sure i've understood it right, the call center setup is working fine, dial peer is configured and points to the ccx trigger, so the calls incoming from the E1 and going to the call center number are correctly routed to the CCX trigger and of course to the applications, now I want 4 new numbers ( coming to the FXO ports) to be routed exactly in the same way towards the CCX trigger, so I guess I have tocreate the PLAR OPX and that's it ?

[Chris Deren]

Correct, just point your PLAR destination to the number you want it to go. This way all calls arriving on the POTS lines will be routed to this destination.

[TrickTrick]

Thanks Chris, i'll try this and reply if all good

[Jonathan Schulenberg]

Also be CERTAIN that Disconnect Supervision is functioning properly. Either have the carrier use ground-start signaling or try tone-based DS with loop-start. Without this you’ll have ports stuck off-hook if the far end hangs up while connected to the IVR port.
https://www.cisco.com/c/en/us/support/docs/voice/analog-signaling-e-m-did-fxs-fxo/8120-fxo-disconnect.html

[TrickTrick]

faced exactly what you have described above, when there's is no answer and try to call a 2nd time, I have the busy tone until I disconnect the cable manually and plug it again

I think supervisory disconnect is already enabled by default, I should configure cptone tho, but i don't find the country code for Morocco, should I configure it manually I guess

in general , what are the mandatory commands I should use to avoid this kind of problem

cptone [Country_code] ?

signal groundStart ?

supervisory disconnect signal ?

no battery-reversal ?

Tried those without success , something is missing on there to avoid the busy tone

[R0g22]

What does your current port config looks like ? Are you aware if your Telco is doing a signaling based supervisory or tone based supervisory disconnect ?

[TrickTrick]

honestly I have no idea about the provider part, should I ask them about this ?
My config is simple, I have a dial peer pointing on the call center extension, and a connection plar opx [extension] in the voice-port, that's all
I did a test, it's working , but when I recall I have the busy tone, I have to shut no shut the voice-port to make it work again, so it's a signaling problem I guess

[R0g22]

Cptone is important but since this is in Morocco, can you talk to the Telco and ask what their device is using ? In addition, try the following -

voice-port x/x/x
timing guard-out 1000
supervisory disconnect dualtone mid-call
timeout wait-release 3
timeout call-disconnect 3
shut
no shut

[TrickTrick]

Hi Nipun,

Honestly just by using connection plar opx XXXX and caller-id enable it works good, the only remaining problem is related to the tone itself:

For example I make a call, it works normal no problem, and finish the call no problem
but when I call, during the call I try to call again the same number to make sure that i'll get a busy tone, Instead, I have the calling tone, it's like it rings while it's not the case because the number is busy , once the call is finished, the call is redirected and the phone starts ringing

in short: instead of giving the busy tone ( because the line is really busy) it gives the ringing tone instead

other tests : by using an analogical phone directly plugged into the telco device, the line behaves normally

any idea which parameter should I change at Voice gateway level ?