Breif modem-type tone on ACS

[FordMan77]

Customer has an ACS R4.0, 206E, 206, 400, and VS Mail. When answering an inbound call, often (but not always) when someone picks up the call, they hear a squeal right as they pick up the handset that sounds to me like modem tone. Once the tone stops, the caller is there and all is well. I was able to reproduce this while onsite, but cannot see why they are getting this tone. There is no modem attached to the ACS, and the fax is a dedicated # outside the system, so I doubt it's anything related to that. Is it possible that the CO is causing this? I need to go back out and plug a phone directly into the station port in the system, but I'd be willing to bet that it'll do it there too.

Is there anything else I should look for before heading to their provider about it? Of course they've already called SBC to check, and they point at the equipment as being the cause.

thanks

 

[1043]

http://www.tek-tips.com/viewthread.cfm?qid=1132604

 

[TouchToneTommy]

Followed the link, didn't see where it was relevelant.

Be that as it may, they're hearing the Caller ID coming in between the 1st and 2nd ring. Tell them to slow down a bit when grabbing an incoming call.

 

[FordMan77]

Thanks TTT. I'll have them do that and see what they get.