Greetings, ive been trying to setup an ATA186 for connection to a fax machine, we are using SIP as our primary voip method and i have configured the following parameters in CCME, im aware that there are issues with SIP and Faxing as most providers dont support T.38 but i was hoping to work around this issue by registering the device in SCCP.
voice service voip
allow-connections h323 to sip
allow-connections sip to h323
allow-connections sip to sip
no supplementary-service sip moved-temporarily
no supplementary-service sip refer
modem passthrough nse codec g711ulaw
dial-peer voice 8383 voip
incoming called-number 0121*******
fax rate disable
ephone-dn 135 dual-line
number 0121******* no-reg both
label Fax Line
name Fax Line
The ATA is successfully registered with CME using load ATA030203SCCP051201A.zup and is configured as per the attached image, I currently have the ATA plugged into the fax machine on Port 1 but when i try and call the number it just rings out when i would expect to hear a fax tone.
Any suggestions would be much appreciated.