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Community Member

FAX on the Standard ATA 186

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?

5 REPLIES
Community Member

Re: FAX on the Standard ATA 186

On the fax machine, reduce the speed to 9600 baud.

http://www.cisco.com/en/US/ts/fn/100/fn17440.html

Community Member

Re: FAX on the Standard ATA 186

Dear Mhendren,

Thanks alot for your fast response.

I tries this before but I still have problems.

Shouldn't I tune the ATA itself?

Community Member

Re: FAX on the Standard ATA 186

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?

Hall of Fame Super Gold

Re: FAX on the Standard ATA 186

As mentioned in the duplicates of this thread,

Post here output of "show controllers E1" or T1.

Re: FAX on the Standard ATA 186

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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