SIP registration problems - please help!
Stewart:
Assuming that changing X_UserAgentPort didn't help:
A SIP ALG problem would be unlikely to impact either GV or OBiTalk, as they are very different protocols. If you have one, trying another brand of router would be a useful quick test. Or, if you have a second Ethernet NIC for your Mac, e.g. a USB-to-Ethernet dongle, you could set up PPPoE on the Mac, connected directly to the modem, sharing the Internet connection to the other Ethernet port, where you'd connect the OBi (if the NIC is not auto MDI/MDX, you'd need a crossover cable, hub or switch in the path.
If you just want to proceed with the Wireshark analysis, don't worry about Syslog Level. It doesn't affect SIP Debug at all; it only controls what internal OBi events get logged. The default setting (7) logs everything available, which can't hurt and might prove useful.
Yet a third approach would be to test the OBi with another SIP provider, e.g. a free Callcentric account. If that also fails, it will be easier to debug, because many users here are familiar with it. If Callcentric works ok, we can look at what's different between the two providers.
RevKev:
I would try connecting the OBi directly to the AE and bypass the Time Capsule and see if that makes any difference.
ichigo:
Yes, you're correct Stewart: changing X-UserAgentPort did not help.
I didn't want to go out in the rain to buy a USB-to-Ethernet dongle or another brand of router, and I was a bit overwhelmed by Wireshark - so I decided to try option 3. Callcentric registered without any hiccups at all and I was able to receive and make calls. I cross-checked the OBi's Call History page to make sure that the calls were indeed routed through SP2 (Callcentric). So now do you think we can leave the SIP ALG issue behind us?
I think I will now have to look at Wireshark again and get those logs for you to analyze :)
@RevKev: the AirportExpress only has a WAN port - so I cannot connect the OBi to it directly.
Stewart:
In case it's difficult to get the ASAHI Net service to work properly, could another provider be a good alternative? ASAHI rates to Japan landlines and mobiles are quite high. Are you using it primarly to call free 050 numbers?
Is your existing 050 number important to you? If so, can it be ported to another provider? If not, would a geographic, e.g. 03 number be acceptable?
Does ASAHI include call forwarding? If so, are there any free forwarding destinations (SIP URI, iNum, etc.)? If so, that would provide a workaround for incoming, until the problem can be fixed.
ichigo:
Asahi is my ISP and they are the cheapest with English language support. I do call 050 numbers, but I need a local Japan number for people to call, and this seems to be a cheap option. My current 050 number is not terribly important for me. 03 numbers are traditional telephone numbers here as far as I know.
I don't think Asahi includes call forwarding, but I can wait a while till the problem is fixed.
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