Quote Originally Posted by VOIPoBrandon View Post
As Justin stated quite accurately, the requests are very small and not intensive nor intrusive, as the traffic is UDP which in itself is a very lightweight protocol, unfortunately these push requests that we send are required to keep the nat pinhole open between your network and ours, otherwise as soon as your router closes its connection, calls will "fail over".
I did what sr98user suggested: shut down my ATA and restarted early this morning. I still am getting traffic from 4 distinct IP addresses - as you can see about 10 per minute. I just want to be sure that what I'm experiencing is normal behavior for a single VOIPo supplied ATA.

2009/05/18 21:05:07 : Blocked access attempt : UDP from 67.23.11.26:5060 to MY.IP.ADDR:5060
2009/05/18 21:05:12 : Blocked access attempt : UDP from 174.132.131.131:5060 to MY.IP.ADDR:5060
2009/05/18 21:05:12 : Blocked access attempt : UDP from 74.52.58.50:5060 to MY.IP.ADDR:5060
2009/05/18 21:05:13 : Blocked access attempt : UDP from 174.132.131.131:5060 to MY.IP.ADDR:5061
2009/05/18 21:05:13 : Blocked access attempt : UDP from 74.52.58.50:5060 to MY.IP.ADDR:5061
2009/05/18 21:05:35 : Blocked access attempt : UDP from 67.228.251.106:5060 to MY.IP.ADDR:5060
2009/05/18 21:05:53 : Blocked access attempt : UDP from 67.23.11.26:5060 to MY.IP.ADDR:5060
2009/05/18 21:05:56 : Blocked access attempt : UDP from 211.99.122.18:1070 to MY.IP.ADDR:1434
2009/05/18 21:05:57 : Blocked access attempt : UDP from 74.52.58.50:5060 to MY.IP.ADDR:5060
2009/05/18 21:05:57 : Blocked access attempt : UDP from 174.132.131.131:5060 to MY.IP.ADDR:5060
2009/05/18 21:05:58 : Blocked access attempt : UDP from 74.52.58.50:5060 to MY.IP.ADDR:5061
2009/05/18 21:05:58 : Blocked access attempt : UDP from 174.132.131.131:5060 to MY.IP.ADDR:5061

Brandon, I do hear what you're saying. Just that in my particular case, as you can see, the traffic is being blocked by my router and yet all appears to work fine - I presume the router is doing it's normal function and rejecting unsolicited traffic.

My expectation is similar to that mentioned by Burris - I'd like to place my ATA behind my router and not DMZ or forward ports. If that's a reasonable expectation then isn't your typical NAT router going to reject unsolicited traffic? I understand the need to keep the pin-hole open ... presumably the pin-hole will be open for the one IP address the ATA is pinging on a regular basis and I presume it's not pinging 4 different IP addresses.

Please understand I'm not trying to be argumentative. I'm, for the most part, happy with the service. Just curious about all this blocked traffic. I'm also curious if this is standard for other providers or something peculiar to VOIPo.