I've been scouring the boards for days with no success.
I've got a Cisco 2651XM with a 7940G hanging off one side, and a 2FXO port card plugged into an analog extension of a Toshiba CIX 100 PBX (in the UK).
I've configured the router as below, but when I call the analog extension from another phone plugged into the Tosh, the Cisco phone rings, and I can hear the person on the Cisco phone, but they can't hear me. Strangely, I can press the keypad and they can hear that, but they can't hear any speech.
Calling between the Cisco 7940 and IP communicator (the only two phones connected to the 2651XM) works fine.
Can anybody tell me what I'm doing wrong?
I know it's not an ideal setup (I'd rather use BRI but we don't control the PBX, getting it changed is to difficult currently, and this is proof of concept.
Phone 1 >> Toshiba PBX >> FXO Port on 2651XM >> Phone 2 (Cisco 7940)
Re: 2651XM, 2FXO into Toshiba PBX gives one way audio
Thanks for taking a stab at this.
Running the command gives the output attached, and it looks (to my untrained eyes) like both Tx and Rx counters are increasing.
Standard IP access list 1
10 permit 192.168.50.0, wildcard bits 0.0.0.255
Extended IP access list 100
10 permit ip host 255.255.255.255 any
20 permit ip 127.0.0.0 0.255.255.255 any
30 permit ip 192.168.12.0 0.0.0.255 any
Extended IP access list 101
10 permit ip any any
Extended IP access list SDM_HTTPS
10 permit tcp any any eq 443
Extended IP access list SDM_SHELL
10 permit tcp any any eq cmd
Extended IP access list SDM_SSH
10 permit tcp any any eq 22
192.168.50.x is on Fe0/1 which is not used.
Both phones are hanging off Fe0/0 in the 192.168.12.x range.
Changing Voice-Port 1/0/0 to point at 1001 ( the IP communicator) gives exactly the same problem. Audio is one sided, but I can send DTMF tones from the remote phone and they show up on IP communicator.
I've also tried this with Voice-Port 1/0/1.
Could I have a bad card?
I've also swapped the cable between the FXO and the analogue PBX extension several times, no dice.
The previous analogue phone worked fine from this extension.
I've also tried a different analogue extension on the PBX with exactly the same result.
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