Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

Faxing Best Practice (H323 Gateway with SCCP ATA CCM4.1(3)

I'm writing an advice guide on faxing with the SCCP ATA and H323/Router/PRI , is this the best setup for faxing?

1. Verify voice PRI controller has no slips/errors,etc. It has to be clean.

2. Config t

Voice service voip

modem passthrough nse codec g711ulaw

dial-peer voice XXXXXXX voip

modem passthrough nse codec g711ulaw

Reference

http://www.cisco.com/en/US/products/ps6441/products_configuration_guide_chapter09186a008053b51f.html

3.If you add the above modem passthrough then change the ATA (http://X.Y.Z.A/dev)

Audio Parameters

AudioMode 0x00150015 (default is 0x00350035)

ConnectMode 0x90000400 (default is 0x90000400)

4. Verify you have the second generation ATA-186I1-A, the first generation had DSP problems.

Should I give any other advice?

IOS 12.4(5)a

Callmanager 4.1(3)

ATA 3.02.01(050429A)

ATA ATA030201SCCP050429A.zup

What other tips should I provide?

2 REPLIES
Bronze

Re: Faxing Best Practice (H323 Gateway with SCCP ATA CCM4.1(3)

Under voip dial-peer put also "fax rate disable" and "no vad".

Also you don't need to put the modem passthrough command in two places. one of them will do the trick.

Re: Faxing Best Practice (H323 Gateway with SCCP ATA CCM4.1(3)

Are there any tests that show RFC2198 (redundancy) improves fax reliability if implemented in the dial-peer and ata?

160
Views
0
Helpful
2
Replies