IMHO only media packets are blocked - the same happening from intranet of some companies I had worked for
-- Igor Ostapchenko +1-877-OCTANIX ext:2021 On Thu, 2010-01-28 at 07:42 -0500, Matthew Gamble wrote: > Have you tried running SIP on a different port (for example, 5062)? > > You can setup a quick DNAT on your Asterisk server to send all traffic > it receives on 5062 to port 5060: > > /sbin/iptables -t nat -A PREROUTING -p udp -d <PublicIP> --dport 5062 > -j DNAT --to <PublicIP>:5060 > > It's worth trying to see if they are just blocking based on the port. > I had the same issue with some ISP's in other countries outside of > North America and by moving to 5062 the client was able to make calls. > > Hope that helps! > > On Thu, Jan 28, 2010 at 7:12 AM, Liviu Toma <[email protected]> wrote: > > Thank you both. IAX was going to be the next thing to try on my list. > > > > Liviu > > > > On Thu, Jan 28, 2010 at 2:32 AM, Reza - Asterisk Consultant > > <[email protected]> wrote: > >> A while ago a friend tried something similar. He concluded SIP UDP > >> packets > >> are blocked or filtered out. He enabled VPN and connected directly with > >> his office PBX without issues. It just appears that SIP audio traffic is > >> blocked. However as with Patrick, the IAX protocol worked without any VPN > >> or traffic modifications/re-routing to other ports. > >> > >> I'm still curious about what you are doing and accomplishing - but I am > >> equally curious with the Windmobile Internet service for both the SIP > >> protocols and the latency period. > >> > >> *Cheers! > >> Reza.* > >> -- > >> Toronto based VoIP / Asterisk Trainer, > >> I.T. Consultant and Hosted PBX Solutions Provider. > >> +1-647-476-2067. > >> http://www.linkedin.com/in/seminar > >> > >> > >> On Wed, Jan 27, 2010 at 10:37 PM, Patrick Song <[email protected]> wrote: > >> > >>> I had a bad luck to send sip traffice over Rogers Portable Internet in the > >>> past but IAX is ok > >>> > >>> On Wed, Jan 27, 2010 at 7:44 PM, Liviu Toma <[email protected]> wrote: > >>> > >>> > Hello, > >>> > > >>> > Has anyone been able use a VoIP adapter over WiMAX (Bell Rural Internet > >>> or > >>> > Rogers Portable Interet) ? > >>> > I have a Bell WiMAX modem to play with for a couple of days and I can't > >>> get > >>> > VoIP to work through it. > >>> > Basically the adapter registers with Asterisk or with the other service > >>> > without problems, but can't make or receive calls. I tried two different > >>> > ATAs (a D-Link with built in wireless router and a Linksys SPA2100). The > >>> > adapter gets a public IP address from the modem, so there's no NAT > >>> > involved. > >>> > The latency between my Asterisk server (installed in a different > >>> location, > >>> > with public IP address again, no NAT) and the VoIP adapter is less than > >>> 50 > >>> > ms, so that can't be a cause. > >>> > If I turn on sip debugging on my Asterisk, I can see SIP the packets > >>> going > >>> > back and forth during registration, but when I call my ATA there SIP > >>> > messages are going only one way, from Asterisk to ATA, nothing coming > >>> back. > >>> > Bell has a very lame statement in their FAQ at > >>> > > >>> > > >>> https://www.highspeedunplugged.sympatico.ca/CustomerPreSales/Landing/FAQ.aspx > >>> > "There are many VoIP offerings on the market, all using different > >>> > communication 'protocols' or methods of establishing a VoIP > >>> > conversation. > >>> > Unfortunately, we cannot guarantee that a particular VoIP service will > >>> work > >>> > with your Sympatico Unplugged service..." > >>> > My guess is they are blocking it on purpose. > >>> > > >>> > Thanks, > >>> > Liviu > >>> > > >>> > > >>> > --------------------------------------------------------------------- > >>> > To unsubscribe, e-mail: [email protected] > >>> > For additional commands, e-mail: [email protected] > >>> > > >>> > > >>> > >>> > >>> -- > >>> Thank you > >>> > >>> Patrick Song > >>> Thinking globally, Networking locally > >>> CCVP, CCNP, M.Eng in Telecommunications > >>> Cell:1-647-868-2950 > >>> > >> > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [email protected] > > For additional commands, e-mail: [email protected] > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
