TDA30 lines locking up

[johnrca]

I have a customer with a TDA30, 4 digital phones & 2 analog lines from a cable modem that keep locking up. Customer has to disconnect lines from the modem to clear the lines.
Anyone had the same issue?

 

[Otoni]

Could you please clarify more on that?

Shade more light

http://www.wanetelecoms.com

 

[obtsystems]

are you using DISA. does the line lights, stay on red., are you just pulling the line cords from the modem or powering off the modem

 

[johnrca]

They do not have DISA lines. I have not been able recreate the problem.But after talking with tech support, i have been informed that some cable tv companies do not supply disconnect supervision. If the outside caller hangs up first the PBX doesn't see the disconnect. It has only been happening a couple times a week so the customer has been disconnecting the line cord from the cable modem.

 

[obtsystems]

Yes this can be a problem with answered calls but not unanswered calls.
is it being answered by an answering machine connected to the system if no one answers

 

[johnrca]

They have live answer. No answering machine. They have voice mail that only answers after hours. This problem mainly happens during office hours.