02-25-2009 05:14 AM - edited 03-15-2019 04:27 PM
Hi,
I've got a 2811 with a VIC2-2FXS card. 1 port is connected to a ITS Pantel 1 button doorphone.
The doorphone is programmed to dial a 4 digit extension.
The router has a voip dialpeer to point to the callmanager (version 7).
The ipphone rings but as soon as the call is answered, the call is disconnected.
If I connect a normal analog line to the same FXS port, and dial the 4 digit extension everything is working fine.
An incoming call to the doorphone is also working fine. The doorphone automatically picks up
and the call is established.
When I use a ATA, all is working fine as well.
Any idea on how to solve this? WHich debug commands can I run to try and determine the cause?
Thanks in advance,
Jeroen
02-25-2009 05:18 AM
Hi Jeroen,
There are a few things to try:
1) Maybe it's a DTMF issue. Try configuring a PLAR CSS/partition for the number the phone is programmed for, and let the DTMF digits do nothing.
2) Maybe the phone doesn't like something the router is sending. Try 'no caller-id enable' and 'no battery-reversal' and shut/no shut the port.
hth,
nick
02-25-2009 05:23 AM
Hi,
Thanks for your fast reply.
I have tried connection plar with my 4 digit number and removed the programming on the doorphone so it is not sending anything. The exact same thing is happening then. -> the ipphone rings, but call is disconnected if I pick up.
I will give your option 2 a try and let you know the result.
Thanks,
Jeroen
03-16-2009 07:27 AM
Hi,
I finally got round to testing option 2, it is giving the exact same issue.
ANy other ideas?
Thanks,
Jeroen
03-16-2009 08:30 AM
If you've confirmed that it's not DTMF or battery reversal/caller-id, you may want to open a tac case on this.
Very hard to say by speculation.
-nick
03-17-2009 06:01 AM
Hi,
If I configure the port via mgcp (POTS), the first call does not disconnect. The second call I try just gives me dial tone, but nothing happens.
It is only when I configure it via h323 that I have the disconnect issue.
How can I configure the port via h323 so that it has the same config it would have as when I use mgcp?
Thanks,
Jeroen
03-21-2009 09:08 AM
Hi,
I managed to resolve the issue by adding the command no battery-reversal to the voice-port
Kind Regards,
Jeroen
03-21-2009 07:33 PM
Hi Jeroen,
Excellent! There are tons of issues solved by turning that command off. Glad I could help.
-nick
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