Making Outgoing call using GV - sometimes they can't hear me (FIXED)
pc44:
Great advice MichiganTelephone! Thanks for that. Good to know that even with forwarding the port range to one device, the other voip devices still function smoothly for you. This is helpful info.
pc44
RonR:
Quote from: pc44 on July 06, 2011, 05:08:10 am
Quote from: RonR on July 05, 2011, 09:30:32 pm
If your router is the culprit, sometimes forwarding SIP (5060 - 5061) and RTP (16600 - 16998) ports to your OBi will eliminate the problem.
What do you do when you have 2 (two) Obi's behind 1 (one) router? :)
I have two OBi's behind one router. The second OBi has its SIP ports changed to 5062 - 5063 and its RTP ports changed to 17600 - 17998. Everybody gets along perfectly.
RonR:
Quote from: pc44 on July 06, 2011, 07:20:08 am
Good to know that even with forwarding the port range to one device, the other voip devices still function smoothly for you.
I have loss of audio problems on the second (new) device when I do that with multiple OBi's and/or PAP2's.
MichiganTelephone:
Quote from: RonR on July 06, 2011, 09:14:00 am
Quote from: pc44 on July 06, 2011, 07:20:08 am
Good to know that even with forwarding the port range to one device, the other voip devices still function smoothly for you.
I have loss of audio problems on the second (new) device when I do that with multiple OBi's and/or PAP2's.
There are unfortunately a few routers out there that can't seem to handle the packets correctly. We use a Buffalo WZR-HP-G300NH with factory firmware (I believe you can install DD-WRT or Tomato on it, but we've never felt the need to) and it handles multiple devices sharing the same ports just fine. I think a lot of older routers have more issues than newer ones, but that not to say you won't find a few clinkers among the current models.
Also, you want to make sure that if the router has a SIP ALG setting, it is turned off (also see this).
This thread has some other recommendations.
emachac:
Checked the router and SIP ALG is turned off.
I did do more web searches and it sounds like the E4200 router has some problems with NAT..... fortunately, this problem is fairly sporadic... hopefully the port forwards will help! :-)
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