Trouble with Alarm Panel dialer communicating through an AudioCodes mp1288

[dstokes805]

Hello,

I am trying to connect a building alarm panel dialer to an AudioCodes 1288. No matter the settings I change the modem lines don't seem to synch up. I monitor the line connected to the legacy PBX and the communication seems the same. I know there is some delay which is probably causing the issue. I see modem settings in the Audio Codes, but the recommended Fax settings from Zoom seem to be interfering with them. 

Has anyone had any luck when attempting this before. I have also tried with a Grandstream ATA with no luck. 

Thanks,

Derek

[sparrow]

Who's the alarm company?

[dstokes805]

I am trying to work with older Bay Alarm panels.