Client does not send ACK for 200

I have used JAIN SIP 1.2 implemented a B2BUA, as Client Alice we use
eyebeam. The issue is eyebeam does not send ACK for 200(INVITE). Other
Clients work fine,kphone,Kanpaga... So Must be a issue by eyebeam.


******************** INVITE *********************

Request-Line: INVITE sip:[email protected] SIP/2.0
Method: INVITE
Resent Packet: False
Message Header
To: <sip:[email protected]>
SIP to address: sip:[email protected]
From: huang<sip:[email protected]>;tag=cd679948
SIP Display info: huang
SIP from address: sip:[email protected]
SIP tag: cd679948
Via: SIP/2.0/UDP
193.175.134.102:5081;branch=z9hG4bK-d87543-469519657-1--d87543-;rport
Call-ID: f941d7721d653e45
CSeq: 1 INVITE
Contact: <sip:[email protected]:5081>
Max-Forwards: 70
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE,
SUBSCRIBE, INFO
Content-Type: application/sdp
User-Agent: eyeBeam release 3004t stamp 16741
Content-Length: 241
Message body
Session Description Protocol
Session Description Protocol Version (v): 0
Owner/Creator, Session Id (o): - 16695967 16696017 IN IP4
193.175.134.102
Owner Username: -
Session ID: 16695967
Session Version: 16696017
Owner Network Type: IN
Owner Address Type: IP4
Owner Address: 193.175.134.102
Session Name (s): eyeBeam
Connection Information (c): IN IP4 193.175.134.102
Connection Network Type: IN
Connection Address Type: IP4
Connection Address: 193.175.134.102
Time Description, active time (t): 0 0
Session Start Time: 0
Session Stop Time: 0
Media Description, name and address (m): audio 7226 RTP/AVP 0 8 101
Media Type: audio
Media Port: 7226
Media Proto: RTP/AVP
Media Format: ITU-T G.711 PCMU
Media Format: ITU-T G.711 PCMA
Media Format: 101
Media Attribute (a): alt:1 1 : EB33EF35 C57D2BCA 193.175.134.102 7226
Media Attribute Fieldname: alt
Media Attribute Value: 1 1 : EB33EF35 C57D2BCA 193.175.134.102 7226
Media Attribute (a): fmtp:101 0-15
Media Attribute Fieldname: fmtp
Media Attribute Value: 101 0-15
Media Attribute (a): rtpmap:101 telephone-event/8000
Media Attribute Fieldname: rtpmap
Media Attribute Value: 101 telephone-event/8000
Media Attribute (a): sendrecv



******** 200 ****************
Session Initiation Protocol
Status-Line: SIP/2.0 200 OK
Status-Code: 200
Resent Packet: False
Message Header
To: <sip:[email protected]>;tag=905850
SIP to address: sip:[email protected]
SIP tag: 905850
From: "huang" <sip:[email protected]>;tag=cd679948
SIP Display info: "huang" 
SIP from address: sip:[email protected]
SIP tag: cd679948
Via: SIP/2.0/UDP
193.175.134.102:5081;branch=z9hG4bK-d87543-469519657-1--d87543-;rport=5081
Call-ID: f941d7721d653e45
CSeq: 1 INVITE
Contact: <sip:[email protected]:5064;transport=udp>
Session-Expires: 600
Content-Type: application/sdp
Record-Route:
<sip:pellmell.sip-test.org:5064;lr;transport=udp;sipseesessionid=228tooh1t12g6>
Content-Length: 224
Message body
Session Description Protocol
Session Description Protocol Version (v): 0
Owner/Creator, Session Id (o): SnowShoreUaV1 134591281 101323875 IN IP4
193.175.134.78
Owner Username: SnowShoreUaV1
Session ID: 134591281
Session Version: 101323875
Owner Network Type: IN
Owner Address Type: IP4
Owner Address: 193.175.134.78
Session Name (s): SnowShore Sdp
Time Description, active time (t): 0 0
Session Start Time: 0
Session Stop Time: 0
Media Description, name and address (m): audio 6076 RTP/AVP 0 101
Media Type: audio
Media Port: 6076
Media Proto: RTP/AVP
Media Format: ITU-T G.711 PCMU
Media Format: 101
Connection Information (c): IN IP4 193.175.134.78
Connection Network Type: IN
Connection Address Type: IP4
Connection Address: 193.175.134.78
Media Attribute (a): sendrecv
Media Attribute (a): ptime:20
Media Attribute Fieldname: ptime
Media Attribute Value: 20
Media Attribute (a): rtpmap:0 PCMU/8000
Media Attribute Fieldname: rtpmap
Media Attribute Value: 0 PCMU/8000
Media Attribute (a): rtpmap:101 telephone-event/8000/1
Media Attribute Fieldname: rtpmap
Media Attribute Value: 101 telephone-event/8000/1