[Asterisk-Users] Forwarding issue.

[Ken D'Ambrosio]

If I do a supervised forward on a call (Polycom 501, Asterisk 1.2.1), all
goes well until the second time I hit forward (to join the caller with the
extension); then, the caller's MoH goes away (making them think they've
been hung up on), and the server spits out:

asterisk-cw*CLI>
<-- SIP read from 10.20.2.16:5060:
SIP/2.0 500 Internal Server Error
Via: SIP/2.0/UDP 10.20.1.79:5060;branch=z9hG4bK271f9f8f
From: "asterisk" <sip:asterisk at 10.20.1.79>;tag=as319b6dd5
To: <sip:1630 at 10.20.2.16>;tag=A368FBB2-B6EAC0CF
CSeq: 104 BYE
Call-ID: 758a7b251c545f4652227c4d74d2d12d at 10.20.1.79
Contact: <sip:1630 at 10.20.2.16>
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.6.2.0041
Content-Length: 0

Aside from the MoH and the error, all procedes as it should; eventually,
the call is either answered or goes to voicemail.

Any ideas as to what I'm doing wrong?

Thanks,

-Ken