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fxo configuration for BT (in UK)

 
 
Graham Turner
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      05-27-2004
have sstablished the simplese voip model it would seem that involves a 7940
ip phone, linux based pbx, 1760 router with fxo interface for routing to the
pstn (BT in the UK)

am experiencing issues of lower voice quality certainly as compared to an
analog phone connected to the pstn and two windows messenger (ip soft
clients) connected over the Internet.

from this i infer that it is not the ip network suffering from issues of QOS
but perhaps the FXO voice port configuration which i would assume to be in
some way specific to the pstn provider (in this case BT)

have taken what i would assume to be a very general config as follows;

voice-port 2/0
input gain 10
output attentuation 10
no comfort-noise
cptone GB
connection plar 1001
caller-id enable

assistances will be gladly received

GT


 
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