CME with Cisco Unity and FXO problem

[zeincisco]

I have Cisco Call manager Express  2921 verion 8.5 , with 4 port FXO, and Cisco Unity Express.

I am using a FXO with nornail PST line, for sent and reciving call.

without using Unity express and Auto Attn, the system working perfect.

when iam using Unit Express ,

i'm having a issues here with Unity express and the FXO going offhook and does not recive a disconect back.

did any body had this issue before and what is the soulation.

best regards

[Jonathan Schulenberg]

This is expected with loopstart analog lines. Loopstart assumes the user (Unity Express in this case) will always hang up when the call is finished. It provides no mechanism for the C.O. switch to tell the user that the far-end has hung up and thus to go on-hook. You can either ask the carrier to change the circuit to groundstart (recommended); or, work with you to configure disconnect supervision.

Please remember to rate helpful responses and identify helpful or correct answers.