#
U 72.187.95.191:58094 -> 2.9.1.225:5060
REGISTER sip:pbx.mydomain.com:5060 SIP/2.0.
Via: SIP/2.0/UDP 192.168.2.6;branch=z9hG4bK6de88e697.
Max-Forwards: 70.
Content-Length: 0.
To: sip:datacenter@pbx.mydomain.com:5060.
From: sip:datacenter@pbx.mydomain.com:5060;tag=83c074a69737b40.
Call-ID: b1a2460f968bd81bdacc3311ceb47b04@192.168.2.6.
CSeq: 1023124108 REGISTER.
Contact: sip:datacenter@192.168.2.6;expires=25.
Allow-Events: talk,hold,conference.
Allow:NOTIFY,REFER,OPTIONS,INVITE,ACK,CANCEL,BYE,INFO.
Authorization:Digest response="9f8bfade283a09baa03dc488d62f7888",username="datacenter",realm="asterisk",nonce="2cae58b3",algorithm=MD5,uri="sip:pbx.mydomain.com:5060".
User-Agent: Aastra 480i Cordless/1.4.0.1048 Brcm Callctrl/1.5 MxSF/v3.2.6.26.
.

#
U 72.187.95.191:58094 -> 2.9.1.225:5060
REGISTER sip:pbx.mydomain.com:5060 SIP/2.0.
Via: SIP/2.0/UDP 192.168.2.6;branch=z9hG4bK78bde4245.
Max-Forwards: 70.
Content-Length: 0.
To: sip:datacenter@pbx.mydomain.com:5060.
From: sip:datacenter@pbx.mydomain.com:5060;tag=83c074a69737b40.
Call-ID: b1a2460f968bd81bdacc3311ceb47b04@192.168.2.6.
CSeq: 1023124109 REGISTER.
Contact: sip:datacenter@192.168.2.6;expires=25.
Allow-Events: talk,hold,conference.
Allow:NOTIFY,REFER,OPTIONS,INVITE,ACK,CANCEL,BYE,INFO.
Authorization:Digest response="9f8bfade283a09baa03dc488d62f7888",username="datacenter",realm="asterisk",nonce="2cae58b3",algorithm=MD5,uri="sip:pbx.mydomain.com:5060".
User-Agent: Aastra 480i Cordless/1.4.0.1048 Brcm Callctrl/1.5 MxSF/v3.2.6.26.
.

#
U 72.187.95.191:58094 -> 2.9.1.225:5060
REGISTER sip:pbx.mydomain.com:5060 SIP/2.0.
Via: SIP/2.0/UDP 192.168.2.6;branch=z9hG4bK62b84e154.
Max-Forwards: 70.
Content-Length: 0.
To: sip:datacenter@pbx.mydomain.com:5060.
From: sip:datacenter@pbx.mydomain.com:5060;tag=83c074a69737b40.
Call-ID: b1a2460f968bd81bdacc3311ceb47b04@192.168.2.6.
CSeq: 1023124110 REGISTER.
Contact: sip:datacenter@192.168.2.6;expires=25.
Allow-Events: talk,hold,conference.
Allow:NOTIFY,REFER,OPTIONS,INVITE,ACK,CANCEL,BYE,INFO.
Authorization:Digest response="9f8bfade283a09baa03dc488d62f7888",username="datacenter",realm="asterisk",nonce="2cae58b3",algorithm=MD5,uri="sip:pbx.mydomain.com:5060".
User-Agent: Aastra 480i Cordless/1.4.0.1048 Brcm Callctrl/1.5 MxSF/v3.2.6.26.
.

#
U 72.187.95.191:58094 -> 2.9.1.225:5060
REGISTER sip:pbx.mydomain.com:5060 SIP/2.0.
Via: SIP/2.0/UDP 192.168.2.6;branch=z9hG4bK49b8204d4.
Max-Forwards: 70.
Content-Length: 0.
To: sip:datacenter@pbx.mydomain.com:5060.
From: sip:datacenter@pbx.mydomain.com:5060;tag=83c074a69737b40.
Call-ID: b1a2460f968bd81bdacc3311ceb47b04@192.168.2.6.
CSeq: 1023124111 REGISTER.
Contact: sip:datacenter@192.168.2.6;expires=25.
Allow-Events: talk,hold,conference.
Allow:NOTIFY,REFER,OPTIONS,INVITE,ACK,CANCEL,BYE,INFO.
Authorization:Digest response="9f8bfade283a09baa03dc488d62f7888",username="datacenter",realm="asterisk",nonce="2cae58b3",algorithm=MD5,uri="sip:pbx.mydomain.com:5060".
User-Agent: Aastra 480i Cordless/1.4.0.1048 Brcm Callctrl/1.5 MxSF/v3.2.6.26.
.

#
U 72.187.95.191:58094 -> 2.9.1.225:5060
REGISTER sip:pbx.mydomain.com:5060 SIP/2.0.
Via: SIP/2.0/UDP 192.168.2.6;branch=z9hG4bK5838fbea9.
Max-Forwards: 70.
Content-Length: 0.
To: sip:datacenter@pbx.mydomain.com:5060.
From: sip:datacenter@pbx.mydomain.com:5060;tag=83c074a69737b40.
Call-ID: b1a2460f968bd81bdacc3311ceb47b04@192.168.2.6.
CSeq: 1023124112 REGISTER.
Contact: sip:datacenter@192.168.2.6;expires=25.
Allow-Events: talk,hold,conference.
Allow:NOTIFY,REFER,OPTIONS,INVITE,ACK,CANCEL,BYE,INFO.
Authorization:Digest response="9f8bfade283a09baa03dc488d62f7888",username="datacenter",realm="asterisk",nonce="2cae58b3",algorithm=MD5,uri="sip:pbx.mydomain.com:5060".
User-Agent: Aastra 480i Cordless/1.4.0.1048 Brcm Callctrl/1.5 MxSF/v3.2.6.26.
.

#
U 72.187.95.191:58094 -> 2.9.1.225:5060
REGISTER sip:pbx.mydomain.com:5060 SIP/2.0.
Via: SIP/2.0/UDP 192.168.2.6;branch=z9hG4bK80a7983cd.
Max-Forwards: 70.
Content-Length: 0.
To: sip:datacenter@pbx.mydomain.com:5060.
From: sip:datacenter@pbx.mydomain.com:5060;tag=83c074a69737b40.
Call-ID: b1a2460f968bd81bdacc3311ceb47b04@192.168.2.6.
CSeq: 1023124113 REGISTER.
Contact: sip:datacenter@192.168.2.6;expires=25.
Allow-Events: talk,hold,conference.
Allow:NOTIFY,REFER,OPTIONS,INVITE,ACK,CANCEL,BYE,INFO.
Authorization:Digest response="9f8bfade283a09baa03dc488d62f7888",username="datacenter",realm="asterisk",nonce="2cae58b3",algorithm=MD5,uri="sip:pbx.mydomain.com:5060".
User-Agent: Aastra 480i Cordless/1.4.0.1048 Brcm Callctrl/1.5 MxSF/v3.2.6.26.
.