I'm deploying 30 ata's, all with faxes on both ports. On all 30 only one fax can dial out period. When second is idle, first gets fast busy when tries to dial out. both have same CSS/partition. I do a debug isdn q931 and I see call setup behavior then just a disconnect. When I take the fax off the ATA that it couldn't dial from and put it on a new ATA (doesn't matter whether Ãt's port one or two) and it can then dial out fine.
Has anyone seen this? On the ATA that has two faxes, sometimes port one is the port that can fax out and sometimes it's port two.
Audiomode is 0X00150015
Also tried different connect mode 0x90000400 but same issue (only one can fax out).
In all situations, both faxes can "received incoming.
I'm not sure, but I think the second line only supports g711..
Anyway, please check the Codec used in device pool configuration.
Hope it helps.