Hey Jim , you are correct in respect to the Service provider must pay for the bandwidth as I/we will be hair pinning calls back into the Internet. As far as voice quality is concerned (which is my biggest concern) the solution(box) FWD uses will not be the solution I will implement. I am seriously looking/talking with another vendor. But, back to the point, unless a SP has a subscriber base that is technically savy we/I really have no other choice. Again I have a STUN server implemented, but, SNOM and Grandstream are the only hardphone vendors that ship their products with a stun client(that I know of). Beleive me, I wish this wasn't something I had to think about.
regards Mike Michael Kane To-Talk Communications LLC. 37 Sandusky Dr. Wareham, Ma. 02571 www.to-talk.com 508-295-2826 ----- Original Message ----- From: "Jim Flagg" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, July 02, 2003 4:17 PM Subject: Re: [Asterisk-Users] A solution for SIP and NAT > ----- Original Message ----- > From: "Michael Kane" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Wednesday, July 02, 2003 7:37 AM > Subject: Re: [Asterisk-Users] A solution for SIP and NAT > > <snip> > > > That why I have looked into(implemented) such technologies > > like STUN and probably will be forced to purchase a SIP aware firewall that > > will spoof and re-arrange SIP messages destined for my proxy server. > > <snip> > > Correct me if I am wrong but I see a couple big disadvantages to this > solution. > > 1. Voice latency can be significantly increased since all the RTP traffic has > to go through the VOIP providers NAT-proxy. Even if you are calling your > next door neighbor, the traffic has to go all the way to the NAT-proxy and back. > Just ask one of the FWD NAT-proxy users in Europe what it does for sound > quality. > > 2. The VOIP provider has to pay for all the bandwidth of the RTP steams rather > than just the small amount of traffic for call setup. > _______________________________________________ > Asterisk-Users mailing list > [EMAIL PROTECTED] > http://lists.digium.com/mailman/listinfo/asterisk-users > _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users