Hello

I have SER and RTPPROXY installed. Everything works fine till we debug a softphone. I use SPA3000 to dial, the receiver is a softphone. The softphone registers correctly.

When dialing from SPA, here is the handshaking sequence

SPA3000 -- INVITE --><-- TRYING SER -- INVITE -- INVITE --><--TRYING RING softphone.

There is a back-to-back INVITE sent out immediately by SER to the softphone. I don't see those sequence to call other UAs. Does anyone know why SER sends two INVITE?

Thanks! Steven