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tevoip
Active Contributor

Join Date: Nov 2014
Posts: 12

NAT FW with Cisco Router 2911

05/13/2015 11:21 AM

Hello all,i setting up a SIP remote extension on using Cisco NAT firewall the phone has been registered well,form the outside when i call the enterprise the call has been send to the destination and in the other site ,pick up the phone,the problem is call goes on one way. I can't hear any sound . Any idea would be much appreciated .
Thanks!
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PWSlack
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#1

Re: NAT FW with Cisco Router 2911

05/13/2015 1:56 PM

One of the possibilities is the phone's battery is flat.

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lyn
Guru

Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#2

Re: NAT FW with Cisco Router 2911

05/13/2015 4:50 PM

Read the operator's manual or call the tech service people of the manufacturer.
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