Hello,
I faced a similar problem when trying to access my facebook account.
AFAIK, the facebook account is using the Jabber/XMPP protocol; and that
protocol may use various DNS queries, which others don't use (SRV, et al.).
In Precise Pangolin a local DNS resolver, dnsmasq, was introduced; all
I am also having issues with empathy and SIP calls.
I am using Karmic Koala with current updates, Empathy 2.28.1.1,
telepathy-sofiasip 0.5.18-1, and libsofia-sip-ua0 1.12.10-4
I am using a sipgate.de account.
Here is what I saw ...
1. The SIP REGISTER request does not have an EXPIRE header,