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#598973 03/17/16 01:43 PM
Joined: Nov 2002
Posts: 66
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Joined: Nov 2002
Posts: 66
We have a customer that has AT&T pots lines. We have recently installed a Summit and they say that they get dropped calls and the display says Line released. All the CO lines sound fine. Anyone been having this issue? We have installed at least a dozen Summits but most have SIP trunks.

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Low loop current from the provider will drop the line. Anything less than 22ma is not good, optimum is 23-27. If it is around 18 the Summit may think it is not there at all.

Last edited by Derrick; 03/17/16 02:15 PM.

"Old phone guys never die, they just get locked in some closet with an old phone system and forgotten about"

Retired, taking photographs and hoping to fly one of my many kites.

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