--- (12 headers 0 lines)---
Transfer to 111 in externalagent
Transfer from External4 in externalagent
    -- Stopped music on hold on IAX2/sentinel-helpdesk-2
Transmitting (no NAT) to 192.168.0.250:5060:
SIP/2.0 202 Accepted
Via: SIP/2.0/UDP 192.168.0.250;branch=z9hG4bKf69e84a859B80611;received=192.168.0.250
From: <sip:External4@192.168.0.250;transport=udp>;tag=351B4FA-56584EF1
To: "Guest IAX User" <sip:asterisk@192.168.0.134>;tag=as7516a996
Call-ID: 2c06a8242682cfeb53fba14376a19132@192.168.0.134
CSeq: 2 REFER
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Contact: <sip:asterisk@192.168.0.134>
Content-Length: 0
X-Asterisk-HangupCause: Normal Clearing


---
set_destination: Parsing <sip:External4@192.168.0.250> for address/port to send to
set_destination: set destination to 192.168.0.250, port 5060
Reliably Transmitting (no NAT) to 192.168.0.250:5060:
NOTIFY sip:External4@192.168.0.250 SIP/2.0
Via: SIP/2.0/UDP 192.168.0.134:5060;branch=z9hG4bK37614dc4;rport
From: "Guest IAX User" <sip:asterisk@192.168.0.134>;tag=as7516a996
To: <sip:External4@192.168.0.250;transport=udp>;tag=351B4FA-56584EF1
Contact: <sip:asterisk@192.168.0.134>
Call-ID: 2c06a8242682cfeb53fba14376a19132@192.168.0.134
CSeq: 103 NOTIFY
User-Agent: Asterisk PBX
Max-Forwards: 70
Event: refer;id=2
Subscription-state: terminated;reason=noresource
Content-Type: message/sipfrag;version=2.0
Content-Length: 14

SIP/2.0 200 OK
---
set_destination: Parsing <sip:External4@192.168.0.250> for address/port to send to
set_destination: set destination to 192.168.0.250, port 5060
Reliably Transmitting (no NAT) to 192.168.0.250:5060:
BYE sip:External4@192.168.0.250 SIP/2.0
Via: SIP/2.0/UDP 192.168.0.134:5060;branch=z9hG4bK13ac5ab5;rport
From: "Guest IAX User" <sip:asterisk@192.168.0.134>;tag=as7516a996
To: <sip:External4@192.168.0.250;transport=udp>;tag=351B4FA-56584EF1
Contact: <sip:asterisk@192.168.0.134>
Call-ID: 2c06a8242682cfeb53fba14376a19132@192.168.0.134
CSeq: 104 BYE
User-Agent: Asterisk PBX
Max-Forwards: 70
X-Asterisk-HangupCause: Normal Clearing
Content-Length: 0


---
set_destination: Parsing <sip:External4@192.168.0.250> for address/port to send to
set_destination: set destination to 192.168.0.250, port 5060
Reliably Transmitting (no NAT) to 192.168.0.250:5060:
BYE sip:External4@192.168.0.250 SIP/2.0
Via: SIP/2.0/UDP 192.168.0.134:5060;branch=z9hG4bK0d8929b3;rport
From: <sip:111@192.168.0.134;user=phone>;tag=as275eff47
To: "External4" <sip:External4@192.168.0.134>;tag=D71B289D-B0E74BB4
Contact: <sip:111@192.168.0.134>
Call-ID: 6ecb00b9-37ca136b-fe3fbbc2@192.168.0.250
CSeq: 103 BYE
User-Agent: Asterisk PBX
Max-Forwards: 70
Content-Length: 0


---
  == Spawn extension (macro-sendcall, s, 2) exited non-zero on 'SIP/external4-b7d09528<ZOMBIE>' in macro 'sendcall'
  == Spawn extension (macro-sendcall, s, 2) exited non-zero on 'SIP/external4-b7d09528<ZOMBIE>'
sentinel01*CLI>
<-- SIP read from 192.168.0.250:5060:
SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.0.134:5060;branch=z9hG4bK37614dc4;rport
From: "Guest IAX User" <sip:asterisk@192.168.0.134>;tag=as7516a996
To: <sip:External4@192.168.0.250;transport=udp>;tag=351B4FA-56584EF1
CSeq: 103 NOTIFY
Call-ID: 2c06a8242682cfeb53fba14376a19132@192.168.0.134
Contact: <sip:External4@192.168.0.250>
Event: refer;id=2
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.4.1
Content-Length: 0


--- (10 headers 0 lines)---
sentinel01*CLI>
<-- SIP read from 192.168.0.250:5060:
BYE sip:asterisk@192.168.0.134 SIP/2.0
Via: SIP/2.0/UDP 192.168.0.250;branch=z9hG4bKdcc4c01a832776C3
From: <sip:External4@192.168.0.250;transport=udp>;tag=351B4FA-56584EF1
To: "Guest IAX User" <sip:asterisk@192.168.0.134>;tag=as7516a996
CSeq: 3 BYE
Call-ID: 2c06a8242682cfeb53fba14376a19132@192.168.0.134
Contact: <sip:External4@192.168.0.250>
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.4.1
Max-Forwards: 70
Content-Length: 0


--- (10 headers 0 lines)---
Sending to 192.168.0.250 : 5060 (non-NAT)
Transmitting (no NAT) to 192.168.0.250:5060:
SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.0.250;branch=z9hG4bKdcc4c01a832776C3;received=192.168.0.250
From: <sip:External4@192.168.0.250;transport=udp>;tag=351B4FA-56584EF1
To: "Guest IAX User" <sip:asterisk@192.168.0.134>;tag=as7516a996
Call-ID: 2c06a8242682cfeb53fba14376a19132@192.168.0.134
CSeq: 3 BYE
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Contact: <sip:asterisk@192.168.0.134>
Content-Length: 0


--ntinel01*CLI>
sentinel01*CLI>
<-- SIP read from 192.168.0.250:5060:
SIP/2.0 500 Internal Server Error
Via: SIP/2.0/UDP 192.168.0.134:5060;branch=z9hG4bK13ac5ab5;rport
From: "Guest IAX User" <sip:asterisk@192.168.0.134>;tag=as7516a996
To: <sip:External4@192.168.0.250;transport=udp>;tag=351B4FA-56584EF1
CSeq: 104 BYE
Call-ID: 2c06a8242682cfeb53fba14376a19132@192.168.0.134
Contact: <sip:External4@192.168.0.250>
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.4.1
Content-Length: 0


--- (9 headers 0 lines)---
    -- Incoming call: Got SIP response 500 "Internal Server Error" back from 192.168.0.250
Destroying call '2c06a8242682cfeb53fba14376a19132@192.168.0.134'
sentinel01*CLI>
<-- SIP read from 192.168.0.250:5060:
SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.0.134:5060;branch=z9hG4bK0d8929b3;rport
From: <sip:111@192.168.0.134;user=phone>;tag=as275eff47
To: "External4" <sip:External4@192.168.0.134>;tag=D71B289D-B0E74BB4
CSeq: 103 BYE
Call-ID: 6ecb00b9-37ca136b-fe3fbbc2@192.168.0.250
Contact: <sip:External4@192.168.0.250>
User-Agent: PolycomSoundPointIP-SPIP_501-UA/1.4.1
Content-Length: 0


--- (9 headers 0 lines)---
Destroying call '6ecb00b9-37ca136b-fe3fbbc2@192.168.0.250'
  == Spawn extension (macro-sendcall, s, 2) exited non-zero on 'IAX2/sentinel-helpdesk-2' in macro 'sendcall'
  == Spawn extension (macro-sendcall, s, 2) exited non-zero on 'IAX2/sentinel-helpdesk-2'
    -- Hungup 'IAX2/sentinel-helpdesk-2'