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Faxing issue

actualabhishek
Level 1
Level 1

Hello,

We have Fax machine connected to ATA-187 and almost 70% of outgoing Fax fails with Transmit error.

I have attached partial config of my CME gateway. Kindly assist in resolving this issue.

Thanks in advance!

1 Reply 1

jasonlnielsen
Level 4
Level 4

A couple things to check:

1. Disable ECM on the fax machine

2. Set the transmission speed lower.

Newer Fax machines are SG3 capable which mean they do not negotiate t.38. The use modem speeds for faster transmissions. ATA-187 are not the best solution for Faxing. I would use either a POTS line or a different voice gateway such as a VG302 where you can use H.323 or SIP.

Jason

Please rate if this helps. Thanks!

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