I'll connect a T1 of a Cisco router 3725 to a Motorola FRAD T1, which use another interface connects to remote Motorola FRAD through the FR. T1 CAS will be running between 3725 and FRAD. Do I need special configuration, like which one is network interface,which one is user interface. I recall when connectes PRI to a PBX, it requires this. Anybody has experience on this or any document can help me out? Thanks
I have this sample config from two Cisco routers connected back-to-back. User and Network side config is only in PRI, you donot need that in CAS.
controller T1 1/1
clock source line
ds0-group 0 timeslots 1-4 type e&m-eana
description To PSTN Switch
controller T1 1/1
clock source internal
ds0-group 0 timeslots 1-4 type e&m-fgd
description To Voice Gateway
A little confusion here,
1.in analog E&M, there will be dedicated line for E&M signaling, but in T1 case, 2 pairs are already for audio Tx/Rx. Are there dedicated line for T1 CAS. I think no, it uses in-band signal as ABCD bit. Right? So meaning it uses the same line as E&M
2. Do you need configure wire type 2/4 on the voice port same for analog E&M
I'm trying to setup a back-to-back e&m-fgd connection using your sample config, but i can't get it to work. I'm using AS5300(e&m-fgd side) and C2691(fgd-eana side) and call is sent from c2691 to as5300.
My call flow is as follow:
When i run the debug on e&m-fgd side, the ani and dnis information are not received hence the call is never forwarded to voip side. is there any additional configuration to support this?
Will my call flow work for FGD? i tried using FGB before and it works fine, but i wanted to send ANI information.
Based on what i've read, FGD EANA (Exchange Access North American) is a CAS signalling that is able to send ANI information outbound as well as collecting it inbound, while FGD supports collection of ANI inbound only.
My config is exactly the same as the previous post by partha.
Hope this helps.
Try adding direct-inward-dial command under the pots dial-peer which matches all incoming calls on the 2691.
dial-peer voice 1111 pots
incoming called-number .
I tried the same configs with h323 and also mgcp, it worked. I used a 2621 router for customer location, and a 7200VXR for the PSTN simulation.
I will try to find and post my working config, and see if that helps you.
Unfortulately my results were like you. MGCP T1 CAS doesn't work. I do not get the caller/called digits into my gateway(2620-eana) from the PSTN end(7200-fgd).
H323 T1 CAS works fine, MGCP/H323 T1 PRi works fine, but no go with MGCP T1 CAS on a back-to-back router.
Let me know if you find anything on why MGCP doesn't work, or how to get it to work.