03-26-2008 09:16 AM - edited 03-15-2019 09:39 AM
Is there any way to find which signals are coming from PSTN(Telco)side? I have a FXO disconnection problem and almost tried every thing. Please help.
Regards,
MAR
03-26-2008 09:30 AM
Which country are you in?
Check the info from the great guys at:
http://www.3amsystems.com/wireline/tone-search.htm
Hope this helps, please rate post if it does!
03-26-2008 10:05 PM
Yes, i've checked and i make a new custom tone but it didn't resolved my problem. Please advice.
03-27-2008 02:36 AM
Record your tone on the PC, attach it here together with config and mentioen the applicable country.
03-27-2008 04:25 AM
03-27-2008 05:18 AM
Hi, recording quality is marginal, but try 440 Hz, 275 ms on 275 ms off.
03-27-2008 06:01 AM
Is voice port configuration is alright ?
03-27-2008 06:05 AM
Seems so.
03-28-2008 06:52 AM
03-28-2008 08:28 AM
Tone-based disconnect supervision is not very reliable and sometime doesn't work at all.
However in the debug seems like you're getting battery reversal, try that:
http://www.cisco.com/en/US/tech/tk652/tk653/technologies_tech_note09186a00800ae2d1.shtml#topic6
Good luck!
03-31-2008 04:39 AM
I've tried but no luck. Is there any way to find out which type of signals PSTN are sending.
Regards,
MAR
03-31-2008 05:18 AM
It's probably 425 Hz after all. The recording you sent has a lot of noise and the frequency analysis can be impacted. The main problem is that tone-based is unreliable in itself.
04-02-2008 08:14 AM
Is there any way to find out which type of signals PSTN are sending ?
04-02-2008 08:17 AM
They are sending the signals detailed above, problems is rotuter doesn't recognize them. Which exact IOS are you using ?
04-02-2008 11:14 PM
Cisco IOS Software, 2800 Software (C2800NM-ADVENTERPRISEK9-M), Version 12.4(3h), RELEASE SOFTWARE (fc2)
c2800nm-adventerprisek9-mz.124-3h.bin
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