[cisco-voip] ccm and Service Provider PAT Port Allocation Enhancement for RTP and RTCP

[gokhan senol]

hi

design : ccm 4.1.3  have 2 ip address one private and the other one public.
private ip is behind the firewall.

i gave public ip address to CCM for 2nd ethernet and putted the beyond the firewall .also I  added a new h323 gateway  for voip service provider's h323 gateway .
when i try to make a call from voip provider's backbone the remote side ringins but there is no audio ,
because there is no rtp stream from my ip phone. Because ip phones have private ip
so is it ok if i nat the ip phones on my internet router?
also i read a documents related to Service Provider PAT Port Allocation Enhancement for RTP and RTCP   and session border control ..
how to i nat ipphones .  
can  i use the config example in the document below in my INTERNET router?
http://www.cisco.com/en/US/products/ps6640/products_white_paper0900aecd80597bc7.shtml

thanks a  lot
Gokhan

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