Thanks, I updated sip port from 5061 to 5060. It also worked.

来源: 于 2009-09-05 11:15:09 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

I don't know how can two different SIP port both working. Another change I made was updating Register expires from 3600 to 600. Not sure what's the significance of this parameter. Thanks for your suggestion!