I had this same problem with them. I ended up adding my own DNS SRV records for sipphone.com to my DNS server since theirs are so broken. On Dec 13, 2007 1:05 PM, Brian West <brian.west@mac.com> wrote:
Attention everyone:
I have added some examples for setting up various sip providers into SVN under directory/default/ that you can use as templates to setup your connections to those providers.
One note that I must inform you all on is the fact that SIPPhone.com advertises _sip._tcp.proxy01.sipphone.com that maps to uap.sipphone.com port 443 which is 100% invalid and doesn't work. So when you send an invite to sipphone it'll take 30 seconds for TCP to timeout and then fall back to UDP.
You have three options here:
1. Email SIPPhone and ask them to fix it. Which I have done and yet to get a response about. 2. Disable TCP and only use UDP in oubound.xml profile that you register from for sipphone. 3. Do not use SIPPhone at all.
The bottom line is they shouldn't advertise an SRV record for TCP if they do not officially support it.
Thanks, Brian West
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