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Cisco Bug: CSCut39017 - Remove DC from NIM-4FXO or VIC2-4FXO

Last Modified

Sep 25, 2018

Products (1)

  • Cisco 4400 Series Integrated Services Routers

Known Affected Releases

15.5(1.1)T

Description (partial)

Symptom:
Hissing noise can be heard prominently on .rin.  The hissing noise is consistent while the called party is not yet answering then it comes in and out on the entire conversation. It can be heard most of the time when calling party is not talking. "No vad" and "no comfort noise" are configured on the voice port and VOIP dial-peer.  This was experienced by the customer on his environment and was replicated at Cisco lab. There is a POTS line connected to NIM-4FXO or VIC2-4FXO

Conditions:
with POTS line connected to NIM-4FXO or VIC2-4FXO
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