Unable to register users through SIP plugin to SIP SERVER

Prateek_Jindal · August 27, 2008, 9:47am

I have a sip server and client, but I want to give services of our sip server through web also…for this purpose

I have installed openfire, red5 plugin and sip plugin…

But I cant register users to my sip server…

I am attaching the logfiles…

12:46:36.984 Wed 27 Aug 2008, 10.128.16.254:5073/udp (398 bytes): sent
REGISTER sip:10.128.16.254:5073 SIP/2.0
Via: SIP/2.0/UDP 10.128.16.136:5080;rport;branch=z9hG4bK13950
Max-Forwards: 70
To: “ankur1” sip:ankur1@10.128.16.254:5073
From: “ankur1” sip:ankur1@10.128.16.254:5073;tag=z9hG4bK35337407
Call-ID: 364912277705@10.128.16.136
CSeq: 1 REGISTER
Contact: sip:ankur1@10.128.16.136:5080
Expires: 3600
User-Agent: mjsip stack 1.6
Content-Length: 0

-----End-of-message-----

12:46:37.000 Wed 27 Aug 2008, 10.128.16.254:5073/udp (667 bytes): received
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 10.128.16.136:5080;rport=5080;branch=z9hG4bK13950
To: “ankur1” sip:ankur1@10.128.16.254:5073;tag=2bc5bf32a9cffc6e73872b95c256ae1a.2d41
From: “ankur1” sip:ankur1@10.128.16.254:5073;tag=z9hG4bK35337407
Call-ID: 364912277705@10.128.16.136
CSeq: 1 REGISTER
WWW-Authenticate: Digest realm=“10.128.16.254”, nonce=“48b4ffd85c76b5d9ada3c430a16bd70ccb2e15a5”, qop="auth"
Server: Our Server
Content-Length: 0
Warning: 392 10.128.16.254:5073 “Noisy feedback tells: pid=7613 req_src_ip=10.128.16.136 req_src_port=5080 in_uri=sip:10.128.16.254:5073 out_uri=sip:10.128.16.254:5073 via_cnt==1”

-----End-of-message-----

12:46:37.000 Wed 27 Aug 2008, 10.128.16.254:5073/udp (597 bytes): sent
REGISTER sip:10.128.16.254:5073 SIP/2.0
Via: SIP/2.0/UDP 10.128.16.136:5080;rport;branch=z9hG4bK13950
Max-Forwards: 70
To: “ankur1” sip:ankur1@10.128.16.254:5073
From: “ankur1” sip:ankur1@10.128.16.254:5073;tag=z9hG4bK35337407
Call-ID: 364912277705@10.128.16.136
CSeq: 2 REGISTER
Contact: sip:ankur1@10.128.16.136:5080
Expires: 3600
User-Agent: mjsip stack 1.6
Authorization: Digest username=“ankur1”, realm=“10.128.16.254”, nonce=“48b4ffd85c76b5d9ada3c430a16bd70ccb2e15a5”, uri=“sip:10.128.16.254:5073”, qop=auth, response="6724cf4737203958ab9555d87f49c5b3"
Content-Length: 0

-----End-of-message-----

12:46:37.000 Wed 27 Aug 2008, 10.128.16.254:5073/udp (667 bytes): received
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 10.128.16.136:5080;rport=5080;branch=z9hG4bK13950
To: “ankur1” sip:ankur1@10.128.16.254:5073;tag=2bc5bf32a9cffc6e73872b95c256ae1a.2d41
From: “ankur1” sip:ankur1@10.128.16.254:5073;tag=z9hG4bK35337407
Call-ID: 364912277705@10.128.16.136
CSeq: 2 REGISTER
WWW-Authenticate: Digest realm=“10.128.16.254”, nonce=“48b4ffd85c76b5d9ada3c430a16bd70ccb2e15a5”, qop="auth"
Server: Our Server
Content-Length: 0
Warning: 392 10.128.16.254:5073 “Noisy feedback tells: pid=7615 req_src_ip=10.128.16.136 req_src_port=5080 in_uri=sip:10.128.16.254:5073 out_uri=sip:10.128.16.254:5073 via_cnt==1”

-----End-of-message-----

12:46:37.015 Wed 27 Aug 2008, 10.128.16.254:5073/udp (597 bytes): sent
REGISTER sip:10.128.16.254:5073 SIP/2.0
Via: SIP/2.0/UDP 10.128.16.136:5080;rport;branch=z9hG4bK13950
Max-Forwards: 70
To: “ankur1” sip:ankur1@10.128.16.254:5073
From: “ankur1” sip:ankur1@10.128.16.254:5073;tag=z9hG4bK35337407
Call-ID: 364912277705@10.128.16.136
CSeq: 3 REGISTER
Contact: sip:ankur1@10.128.16.136:5080
Expires: 3600
User-Agent: mjsip stack 1.6
Authorization: Digest username=“ankur1”, realm=“10.128.16.254”, nonce=“48b4ffd85c76b5d9ada3c430a16bd70ccb2e15a5”, uri=“sip:10.128.16.254:5073”, qop=auth, response="6724cf4737203958ab9555d87f49c5b3"
Content-Length: 0

-----End-of-message-----

12:46:37.015 Wed 27 Aug 2008, 10.128.16.254:5073/udp (667 bytes): received
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 10.128.16.136:5080;rport=5080;branch=z9hG4bK13950
To: “ankur1” sip:ankur1@10.128.16.254:5073;tag=2bc5bf32a9cffc6e73872b95c256ae1a.2d41
From: “ankur1” sip:ankur1@10.128.16.254:5073;tag=z9hG4bK35337407
Call-ID: 364912277705@10.128.16.136
CSeq: 3 REGISTER
WWW-Authenticate: Digest realm=“10.128.16.254”, nonce=“48b4ffd85c76b5d9ada3c430a16bd70ccb2e15a5”, qop="auth"
Server: Our Server
Content-Length: 0
Warning: 392 10.128.16.254:5073 “Noisy feedback tells: pid=7614 req_src_ip=10.128.16.136 req_src_port=5080 in_uri=sip:10.128.16.254:5073 out_uri=sip:10.128.16.254:5073 via_cnt==1”

-----End-of-message-----

12:46:37.031 Wed 27 Aug 2008, 10.128.16.254:5073/udp (597 bytes): sent
REGISTER sip:10.128.16.254:5073 SIP/2.0
Via: SIP/2.0/UDP 10.128.16.136:5080;rport;branch=z9hG4bK13950
Max-Forwards: 70
To: “ankur1” sip:ankur1@10.128.16.254:5073
From: “ankur1” sip:ankur1@10.128.16.254:5073;tag=z9hG4bK35337407
Call-ID: 364912277705@10.128.16.136
CSeq: 4 REGISTER
Contact: sip:ankur1@10.128.16.136:5080
Expires: 3600
User-Agent: mjsip stack 1.6
Authorization: Digest username=“ankur1”, realm=“10.128.16.254”, nonce=“48b4ffd85c76b5d9ada3c430a16bd70ccb2e15a5”, uri=“sip:10.128.16.254:5073”, qop=auth, response="6724cf4737203958ab9555d87f49c5b3"
Content-Length: 0

-----End-of-message-----

12:46:37.031 Wed 27 Aug 2008, 10.128.16.254:5073/udp (667 bytes): received
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 10.128.16.136:5080;rport=5080;branch=z9hG4bK13950
To: “ankur1” sip:ankur1@10.128.16.254:5073;tag=2bc5bf32a9cffc6e73872b95c256ae1a.2d41
From: “ankur1” sip:ankur1@10.128.16.254:5073;tag=z9hG4bK35337407
Call-ID: 364912277705@10.128.16.136
CSeq: 4 REGISTER
WWW-Authenticate: Digest realm=“10.128.16.254”, nonce=“48b4ffd85c76b5d9ada3c430a16bd70ccb2e15a5”, qop="auth"
Server: Our Server
Content-Length: 0
Warning: 392 10.128.16.254:5073 “Noisy feedback tells: pid=7612 req_src_ip=10.128.16.136 req_src_port=5080 in_uri=sip:10.128.16.254:5073 out_uri=sip:10.128.16.254:5073 via_cnt==1”

-----End-of-message-----

12:46:37.046 Wed 27 Aug 2008, 10.128.16.254:5073/udp (395 bytes): sent
REGISTER sip:10.128.16.254:5073 SIP/2.0
Via: SIP/2.0/UDP 10.128.16.136:5080;rport;branch=z9hG4bK34223
Max-Forwards: 70
To: “ankur1” sip:ankur1@10.128.16.254:5073
From: “ankur1” sip:ankur1@10.128.16.254:5073;tag=z9hG4bK92604263
Call-ID: 853124231811@10.128.16.136
CSeq: 1 REGISTER
Contact: sip:ankur1@10.128.16.136:5080
Expires: 0
User-Agent: mjsip stack 1.6
Content-Length: 0

-----End-of-message-----

12:46:37.046 Wed 27 Aug 2008, 10.128.16.254:5073/udp (667 bytes): received
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 10.128.16.136:5080;rport=5080;branch=z9hG4bK34223
To: “ankur1” sip:ankur1@10.128.16.254:5073;tag=2bc5bf32a9cffc6e73872b95c256ae1a.e430
From: “ankur1” sip:ankur1@10.128.16.254:5073;tag=z9hG4bK92604263
Call-ID: 853124231811@10.128.16.136
CSeq: 1 REGISTER
WWW-Authenticate: Digest realm=“10.128.16.254”, nonce=“48b4ffd85c76b5d9ada3c430a16bd70ccb2e15a5”, qop="auth"
Server: Our Server
Content-Length: 0
Warning: 392 10.128.16.254:5073 “Noisy feedback tells: pid=7613 req_src_ip=10.128.16.136 req_src_port=5080 in_uri=sip:10.128.16.254:5073 out_uri=sip:10.128.16.254:5073 via_cnt==1”

-----End-of-message-----

I checked for this error in my server logs and found thad it says that credentials are not in right format…

I found that cnonce is missing from authentication field in REGISTER message as seen in SIP packets in Ethereal…

I am also not able to test from sip phone mappings…there it says “SIP Account problem: NetworkError ***** Check the Registrar Address, and if there is a firewall blocking OpenFire Server to reach SIP Registrar Address.*”

SIP log is here…

SipProvider-5080: Date: 12:46:36.937 Wed 27 Aug 2008
SipProvider-5080: SipStack: mjsip stack 1.6
SipProvider-5080: new SipProvider(): 5080/udp/tcp
SipProvider-5080: udp is up
SipProvider-5080: tcp is up
ExtendedInviteDialog#7: changed dialog state: D_INIT
ExtendedInviteDialog#7: changed dialog state: D_WAITING
TransactionServer#32: id: INVITE
TransactionServer#32: created
TransactionServer#32: start
TransactionServer#32: changed transaction state: T_Waiting
SipProvider-5080: adding SipProviderListener: INVITE
SipProvider-5080: 1 listeners: INVITE,
TransactionClient#33: id: 364912277705@10.128.16.136-1-REGISTER-10.128.16.136:5080-z9hG4bK13950
TransactionClient#33: created
TransactionClient#33: start
TransactionClient#33: changed transaction state: T_Trying
SipProvider-5080: adding SipProviderListener: 364912277705@10.128.16.136-1-REGISTER-10.128.16.136:5080-z9hG4bK13950
SipProvider-5080: 2 listeners: INVITE, 364912277705@10.128.16.136-1-REGISTER-10.128.16.136:5080-z9hG4bK13950,
SipProvider-5080: using transport udp
SipProvider-5080: Resolving host address '10.128.16.254’
SipProvider-5080: Sending message to udp:10.128.16.254:5073

12:46:36.984 Wed 27 Aug 2008, 10.128.16.254:5073/udp (398 bytes): REGISTER sip:10.128.16.254:5073 SIP/2.0, sent

12:46:37.000 Wed 27 Aug 2008, 10.128.16.254:5073/udp (667 bytes): SIP/2.0 401 Unauthorized, received

SipProvider-5080: received new SIP message
SipProvider-5080: DEBUG: transaction-id: 364912277705@10.128.16.136-1-REGISTER-10.128.16.136:5080-z9hG4bK13950
SipProvider-5080: message passed to transaction: 364912277705@10.128.16.136-1-REGISTER-10.128.16.136:5080-z9hG4bK13950
TransactionClient#33: changed transaction state: T_Completed
TransactionClient#34: id: 364912277705@10.128.16.136-2-REGISTER-10.128.16.136:5080-z9hG4bK13950
TransactionClient#34: created
TransactionClient#34: start
TransactionClient#34: changed transaction state: T_Trying
SipProvider-5080: adding SipProviderListener: 364912277705@10.128.16.136-2-REGISTER-10.128.16.136:5080-z9hG4bK13950
SipProvider-5080: 3 listeners: INVITE, 364912277705@10.128.16.136-2-REGISTER-10.128.16.136:5080-z9hG4bK13950, 364912277705@10.128.16.136-1-REGISTER-10.128.16.136:5080-z9hG4bK13950,
SipProvider-5080: using transport udp
SipProvider-5080: Resolving host address '10.128.16.254’
SipProvider-5080: Sending message to udp:10.128.16.254:5073

12:46:37.000 Wed 27 Aug 2008, 10.128.16.254:5073/udp (597 bytes): REGISTER sip:10.128.16.254:5073 SIP/2.0, sent

12:46:37.000 Wed 27 Aug 2008, 10.128.16.254:5073/udp (667 bytes): SIP/2.0 401 Unauthorized, received

SipProvider-5080: received new SIP message
SipProvider-5080: DEBUG: transaction-id: 364912277705@10.128.16.136-2-REGISTER-10.128.16.136:5080-z9hG4bK13950
SipProvider-5080: message passed to transaction: 364912277705@10.128.16.136-2-REGISTER-10.128.16.136:5080-z9hG4bK13950
TransactionClient#34: changed transaction state: T_Completed
TransactionClient#35: id: 364912277705@10.128.16.136-3-REGISTER-10.128.16.136:5080-z9hG4bK13950
TransactionClient#35: created
TransactionClient#35: start
TransactionClient#35: changed transaction state: T_Trying
SipProvider-5080: adding SipProviderListener: 364912277705@10.128.16.136-3-REGISTER-10.128.16.136:5080-z9hG4bK13950
SipProvider-5080: 4 listeners: 364912277705@10.128.16.136-3-REGISTER-10.128.16.136:5080-z9hG4bK13950, INVITE, 364912277705@10.128.16.136-2-REGISTER-10.128.16.136:5080-z9hG4bK13950, 364912277705@10.128.16.136-1-REGISTER-10.128.16.136:5080-z9hG4bK13950,
SipProvider-5080: using transport udp
SipProvider-5080: Resolving host address '10.128.16.254’
SipProvider-5080: Sending message to udp:10.128.16.254:5073

12:46:37.015 Wed 27 Aug 2008, 10.128.16.254:5073/udp (597 bytes): REGISTER sip:10.128.16.254:5073 SIP/2.0, sent

12:46:37.015 Wed 27 Aug 2008, 10.128.16.254:5073/udp (667 bytes): SIP/2.0 401 Unauthorized, received

SipProvider-5080: received new SIP message
SipProvider-5080: DEBUG: transaction-id: 364912277705@10.128.16.136-3-REGISTER-10.128.16.136:5080-z9hG4bK13950
SipProvider-5080: message passed to transaction: 364912277705@10.128.16.136-3-REGISTER-10.128.16.136:5080-z9hG4bK13950
TransactionClient#35: changed transaction state: T_Completed
TransactionClient#36: id: 364912277705@10.128.16.136-4-REGISTER-10.128.16.136:5080-z9hG4bK13950
TransactionClient#36: created
TransactionClient#36: start
TransactionClient#36: changed transaction state: T_Trying
SipProvider-5080: adding SipProviderListener: 364912277705@10.128.16.136-4-REGISTER-10.128.16.136:5080-z9hG4bK13950
SipProvider-5080: 5 listeners: 364912277705@10.128.16.136-3-REGISTER-10.128.16.136:5080-z9hG4bK13950, INVITE, 364912277705@10.128.16.136-2-REGISTER-10.128.16.136:5080-z9hG4bK13950, 364912277705@10.128.16.136-1-REGISTER-10.128.16.136:5080-z9hG4bK13950, 364912277705@10.128.16.136-4-REGISTER-10.128.16.136:5080-z9hG4bK13950,
SipProvider-5080: using transport udp
SipProvider-5080: Resolving host address '10.128.16.254’
SipProvider-5080: Sending message to udp:10.128.16.254:5073

12:46:37.031 Wed 27 Aug 2008, 10.128.16.254:5073/udp (597 bytes): REGISTER sip:10.128.16.254:5073 SIP/2.0, sent

12:46:37.031 Wed 27 Aug 2008, 10.128.16.254:5073/udp (667 bytes): SIP/2.0 401 Unauthorized, received

SipProvider-5080: received new SIP message
SipProvider-5080: DEBUG: transaction-id: 364912277705@10.128.16.136-4-REGISTER-10.128.16.136:5080-z9hG4bK13950
SipProvider-5080: message passed to transaction: 364912277705@10.128.16.136-4-REGISTER-10.128.16.136:5080-z9hG4bK13950
TransactionClient#36: changed transaction state: T_Completed
TransactionClient#37: id: 853124231811@10.128.16.136-1-REGISTER-10.128.16.136:5080-z9hG4bK34223
TransactionClient#37: created
TransactionClient#37: start
TransactionClient#37: changed transaction state: T_Trying
SipProvider-5080: adding SipProviderListener: 853124231811@10.128.16.136-1-REGISTER-10.128.16.136:5080-z9hG4bK34223
SipProvider-5080: 6 listeners: 364912277705@10.128.16.136-3-REGISTER-10.128.16.136:5080-z9hG4bK13950, INVITE, 364912277705@10.128.16.136-2-REGISTER-10.128.16.136:5080-z9hG4bK13950, 364912277705@10.128.16.136-1-REGISTER-10.128.16.136:5080-z9hG4bK13950, 853124231811@10.128.16.136-1-REGISTER-10.128.16.136:5080-z9hG4bK34223, 364912277705@10.128.16.136-4-REGISTER-10.128.16.136:5080-z9hG4bK13950,
SipProvider-5080: using transport udp
SipProvider-5080: Resolving host address '10.128.16.254’
SipProvider-5080: Sending message to udp:10.128.16.254:5073

12:46:37.046 Wed 27 Aug 2008, 10.128.16.254:5073/udp (395 bytes): REGISTER sip:10.128.16.254:5073 SIP/2.0, sent

ExtendedInviteDialog#7: inside refuse()
ExtendedInviteDialog#7: inside refuse(403,Forbidden)
ExtendedInviteDialog#7: inside respond(403,Forbidden)
ExtendedInviteDialog#7: WARNING: Dialog isn’t in “invited” state: cannot respond (403/D_WAITING/null)
ExtendedInviteDialog#7: inside cancel()
SipProvider-5080: removing SipProviderListener: INVITE
SipProvider-5080: 5 listeners: 364912277705@10.128.16.136-3-REGISTER-10.128.16.136:5080-z9hG4bK13950, 364912277705@10.128.16.136-2-REGISTER-10.128.16.136:5080-z9hG4bK13950, 364912277705@10.128.16.136-1-REGISTER-10.128.16.136:5080-z9hG4bK13950, 853124231811@10.128.16.136-1-REGISTER-10.128.16.136:5080-z9hG4bK34223, 364912277705@10.128.16.136-4-REGISTER-10.128.16.136:5080-z9hG4bK13950,
TransactionServer#32: changed transaction state: T_Terminated
ExtendedInviteDialog#7: inside bye()
SipProvider-5080: halt: SipProvider is going down

12:46:37.046 Wed 27 Aug 2008, 10.128.16.254:5073/udp (667 bytes): SIP/2.0 401 Unauthorized, received

SipProvider-5080: received new SIP message
SipProvider-5080: no listener found: meesage discarded.
SipProvider-5080: transport udp:null:5080 terminated
TransactionClient#37: Retransmission timeout expired
SipProvider-5080: using transport udp
SipProvider-5080: Resolving host address '10.128.16.254’
SipProvider-5080: Sending message to udp:10.128.16.254:5073
Exception: java.lang.NullPointerException
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:682)
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:663)
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:814)
at org.zoolu.sip.transaction.TransactionClient.onTimeout(TransactionClient.java:12 7)
at org.zoolu.tools.Timer.onInnerTimeout(Timer.java:126)
at org.zoolu.tools.InnerTimer.run(InnerTimer.java:43)

TransactionClient#37: Retransmission timeout expired
SipProvider-5080: using transport udp
SipProvider-5080: Resolving host address '10.128.16.254’
SipProvider-5080: Sending message to udp:10.128.16.254:5073
Exception: java.lang.NullPointerException
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:682)
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:663)
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:814)
at org.zoolu.sip.transaction.TransactionClient.onTimeout(TransactionClient.java:12 7)
at org.zoolu.tools.Timer.onInnerTimeout(Timer.java:126)
at org.zoolu.tools.InnerTimer.run(InnerTimer.java:43)

TransactionClient#33: Clearing timeout expired
SipProvider-5080: removing SipProviderListener: 364912277705@10.128.16.136-1-REGISTER-10.128.16.136:5080-z9hG4bK13950
SipProvider-5080: WARNING: trying to remove a missed SipProviderListener.
SipProvider-5080: 0 listeners:
TransactionClient#33: changed transaction state: T_Terminated
TransactionClient#34: Clearing timeout expired
SipProvider-5080: removing SipProviderListener: 364912277705@10.128.16.136-2-REGISTER-10.128.16.136:5080-z9hG4bK13950
SipProvider-5080: WARNING: trying to remove a missed SipProviderListener.
SipProvider-5080: 0 listeners:
TransactionClient#34: changed transaction state: T_Terminated
TransactionClient#35: Clearing timeout expired
SipProvider-5080: removing SipProviderListener: 364912277705@10.128.16.136-3-REGISTER-10.128.16.136:5080-z9hG4bK13950
SipProvider-5080: WARNING: trying to remove a missed SipProviderListener.
SipProvider-5080: 0 listeners:
TransactionClient#35: changed transaction state: T_Terminated
TransactionClient#36: Clearing timeout expired
SipProvider-5080: removing SipProviderListener: 364912277705@10.128.16.136-4-REGISTER-10.128.16.136:5080-z9hG4bK13950
SipProvider-5080: WARNING: trying to remove a missed SipProviderListener.
SipProvider-5080: 0 listeners:
TransactionClient#36: changed transaction state: T_Terminated
TransactionClient#37: Retransmission timeout expired
SipProvider-5080: using transport udp
SipProvider-5080: Resolving host address '10.128.16.254’
SipProvider-5080: Sending message to udp:10.128.16.254:5073
Exception: java.lang.NullPointerException
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:682)
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:663)
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:814)
at org.zoolu.sip.transaction.TransactionClient.onTimeout(TransactionClient.java:12 7)
at org.zoolu.tools.Timer.onInnerTimeout(Timer.java:126)
at org.zoolu.tools.InnerTimer.run(InnerTimer.java:43)

Exception: java.lang.NullPointerException
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:682)
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:663)
at local.net.KeepAliveSip.sendToken(KeepAliveSip.java:81)
at local.net.KeepAliveUdp.run(KeepAliveUdp.java:156)
at local.net.KeepAliveSip.run(KeepAliveSip.java:88)

TransactionClient#37: Retransmission timeout expired
SipProvider-5080: using transport udp
SipProvider-5080: Resolving host address '10.128.16.254’
SipProvider-5080: Sending message to udp:10.128.16.254:5073
Exception: java.lang.NullPointerException
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:682)
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:663)
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:814)
at org.zoolu.sip.transaction.TransactionClient.onTimeout(TransactionClient.java:12 7)
at org.zoolu.tools.Timer.onInnerTimeout(Timer.java:126)
at org.zoolu.tools.InnerTimer.run(InnerTimer.java:43)

Exception: java.lang.NullPointerException
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:682)
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:663)
at local.net.KeepAliveSip.sendToken(KeepAliveSip.java:81)
at local.net.KeepAliveUdp.run(KeepAliveUdp.java:156)
at local.net.KeepAliveSip.run(KeepAliveSip.java:88)

TransactionClient#37: Retransmission timeout expired
SipProvider-5080: using transport udp
SipProvider-5080: Resolving host address '10.128.16.254’
SipProvider-5080: Sending message to udp:10.128.16.254:5073
Exception: java.lang.NullPointerException
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:682)
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:663)
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:814)
at org.zoolu.sip.transaction.TransactionClient.onTimeout(TransactionClient.java:12 7)
at org.zoolu.tools.Timer.onInnerTimeout(Timer.java:126)
at org.zoolu.tools.InnerTimer.run(InnerTimer.java:43)

Exception: java.lang.NullPointerException
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:682)
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:663)
at local.net.KeepAliveSip.sendToken(KeepAliveSip.java:81)
at local.net.KeepAliveUdp.run(KeepAliveUdp.java:156)
at local.net.KeepAliveSip.run(KeepAliveSip.java:88)

TransactionClient#37: Retransmission timeout expired
SipProvider-5080: using transport udp
SipProvider-5080: Resolving host address '10.128.16.254’
SipProvider-5080: Sending message to udp:10.128.16.254:5073
Exception: java.lang.NullPointerException
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:682)
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:663)
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:814)
at org.zoolu.sip.transaction.TransactionClient.onTimeout(TransactionClient.java:12 7)
at org.zoolu.tools.Timer.onInnerTimeout(Timer.java:126)
at org.zoolu.tools.InnerTimer.run(InnerTimer.java:43)

Exception: java.lang.NullPointerException
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:682)
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:663)
at local.net.KeepAliveSip.sendToken(KeepAliveSip.java:81)
at local.net.KeepAliveUdp.run(KeepAliveUdp.java:156)
at local.net.KeepAliveSip.run(KeepAliveSip.java:88)

TransactionClient#37: Transaction timeout expired
SipProvider-5080: removing SipProviderListener: 853124231811@10.128.16.136-1-REGISTER-10.128.16.136:5080-z9hG4bK34223
SipProvider-5080: WARNING: trying to remove a missed SipProviderListener.
SipProvider-5080: 0 listeners:
TransactionClient#37: changed transaction state: T_Terminated
Exception: java.lang.NullPointerException
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:682)
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:663)
at local.net.KeepAliveSip.sendToken(KeepAliveSip.java:81)
at local.net.KeepAliveUdp.run(KeepAliveUdp.java:156)
at local.net.KeepAliveSip.run(KeepAliveSip.java:88)

Exception: java.lang.NullPointerException
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:682)
at org.zoolu.sip.provider.SipProvider.sendMessage(SipProvider.java:663)
at local.net.KeepAliveSip.sendToken(KeepAliveSip.java:81)
at local.net.KeepAliveUdp.run(KeepAliveUdp.java:156)
at local.net.KeepAliveSip.run(KeepAliveSip.java:88)

What are the other changes to make for the configuration…

Please help me to sort out this problem…Thanks in advance.