vg200 with mgcp and ccm - analog line out of service

[fgaeta]

Hi, i have a vg200 with mgcp and 8 analog line connectd to pstn, every thing work perfect, but when my telco provider cut any line by out of pay, my ip'phones try call to pstn choose in a line out of service,... my question is how i can configure the vg200 or ccm to sense the tone and choose the correct line to do the call.

[#2]

For some selected features, you can refer the following document:

http://www.cisco.com/univercd/cc/td/doc/product/voice/c_access/vg_200/122/index.htm