Bug#608021: There is a workaround for this bug (#608021)

[Vladimir Chernyshov]

The bug seems to be caused by Linphone always replacing empty "Route 
(optional)" field in the SIP account configuration with dummy URL 
"sip:". The libeXosip2 rejects this particular URL when sending a short 
message, and Linphone crashes.

The workaround is to set the "Route (optional)" field to the same value 
as the "SIP Proxy address" field. For example, in case of ekiga.net, 
both fields would be set to "sip:ekiga.net".

Best regards,
Vladimir Chernyshov