10-19-2009 08:29 AM - edited 03-15-2019 08:07 PM
Dear Experts,
I have PRI line I use it to provide phone and fax lines.
The Fax lines are NOT working well specially with long distance numbers.
Should I configure the CallManager some how to fix this OR should I configure the Standard ATA 186 itself?
10-19-2009 10:46 AM
On the fax machine, reduce the speed to 9600 baud.
10-19-2009 12:35 PM
Dear Mhendren,
Thanks alot for your fast response.
I tries this before but I still have problems.
Shouldn't I tune the ATA itself?
10-19-2009 12:39 PM
I haven't had to tune an ATA before so I really don't know on that.
When you say it's not working well, what is meant by that? Are calls dropping? Not dialing?
10-19-2009 01:42 PM
As mentioned in the duplicates of this thread,
Post here output of "show controllers E1" or T1.
10-19-2009 02:07 PM
Add network-clock-select 1 e1 0/0/0 (fit to your needs) if you have slips on your T1/E1 in show controller t1/e1
Otherwise, make sure you have this configured for H323:
voice service voip
modem passthrough nse code g711ulaw
and this for MGCP:
mgcp modem pass voip mode nse
mgcp fax t38 inhibit
You also want to set these parameters on the ATA:
audio 0x00150015
connect 0x0900400
hth,
nick
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