Ericsson MD110 - Analog fax handshake failure to fax connected to Aastra DRG.

[waynestatix]

Hi Everyone. If someone can assist me with a failure on fax transmission on the same phone system. I tried sending a fax from (SiteA) an analog line (either internal or external means) dialing either extension number or DDI going to another fax machine connected into Aastra DRG (SiteB. Both lines are on same system. When SiteA sends the fax, you can hear the fax tone on SiteA but after a while, the fax provides status "sending-wait" and then "sending-error". But when SiteB sends fax to SiteA it goes through with no issue.

I am not sure if this is something to do with incompatibility wherein SiteA (analog line) try to send fax to IP device (DRG) which causing a handshake failure. I even tried setting SiteA analog line ICAT category to 1000000. And on SiteB setting DRG line with T38 Codec but didn't help it. Please assist with this. Thanks.