how to receive and handle the "UPDATE" message in SIP? about doubango HOT 6 CLOSED

You can receive UPDATE message in java layer but you cannot respond to it 
unless you handle it in ANSI-C code.
It's relatively easy to change the FSM in "tsip_dialog_invite.c" if you want to 
respond to UPDATE from java.

From java:
Subclass "SipCallback::onInviteEvent" and listen for "tsip_i_request" event.

Hi,sir.

There are some waring came out,when i received a UPDATE msg(RFC3261), the debug 
msg as follow:
1)tsip_parser_header.c 5693
TSK_DEBUG_WARN("parse_header_Content_Disposition NOT IMPLEMENTED. Will be added 
as Dummy header.");
2)tsk_fsm.c 190行
TSK_DEBUG_WARN("State machine: No matching state found.");

how to fix this problem? can you give me some tips or any direction . thx a lot.

My UPDATE msg header as follow.thank you again.
pmC^@E0$=G}MkrcUPDATE sip:[email protected]:29352;transport=udp 
SIP/2.0
Via: SIP/2.0/UDP 61.131.4.71:5060;branch=z9hG4bKcb1c46c6407450ce0b5btaN0
To: <sip:[email protected]>;tag=95259306
From: 
<sip:[email protected]>;tag=ztesipdUiBYP89RlYA663*1-1-20481*ebhj.1
Call-ID: 8ae81141-88c8-6050-22e6-689ff94f8b98
CSeq: 1001 UPDATE
Max-Forwards: 13
Contact: <sip:61.131.4.71:5060;zte-did=1-1-20481-2044-12>
Supported: timer
User-Agent: ZTE Softswitch/1.0.0
Session-Expires: 3600
Content-Type: application/sdp
Content-Length: 206
Content-Disposition: session

v=0
o=ZTE 135 1120747413 IN IP4 61.131.4.74
s=phone-call
c=IN IP4 61.131.4.74
t=0 0
m=audio 39204 RTP/AVP 8 101
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-11
a=ptime:20
a=rtpmap:8 PCMA/8000/1

Here's my call packet file.

Have been resolved in revision 610.
thanks a lot.

you use 
ZTE　ｓｏｆｔｓｗｉｔｃｈ　ｆｒｏｍ　ｃｈｉｎａ　，ｈ��
�ｈａ．．．

We got the same problem with ZTE IMS core used by a European Telco operator.
They are using reINVITE when the request get forked.