No rignback and half path voice

Unanswered Question
Oct 29th, 2009
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I have a problem and I have researched/tested several things unsuccesfully. My problem is that I haven't ringback when I perform a call to the PSTN and when the called party hangs off I cannot hear him although he can hear me.

The IOS version loaded into the router is (C1700-IPVOICE-M), Version 12.3(26) and my startup-config is attached to this post.

My router is 1751 and I have installed a PVDM-256K-4= and VIC-2FXO=.

Any ideas?


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