SIP: Anatomy Of A Good Call Setup Of A SIP Phone Call

Im doing more with SIP these days, so I wanted to post what a good, successful SIP call looks like.  Here are some things I came up with when looking at this in real time:
In one of my translators:

In another one:

Here is the actual capture:
47894366.001 |09:10:21.888 |AppInfo  |//SIP/SIPUdp/wait_UdpDataInd: Incoming SIP UDP message size 817 from 10.10.90.25:[5060]:
[19287418,NET]
INVITE sip:2055677654@10.10.90.23:5060 SIP/2.0
Via: SIP/2.0/UDP 10.10.90.25:5060;branch=z9hG4bK1bf7h72008ogakst05g0.1
From: "WIRELESS CALLER"<sip:2052343232@10.10.90.25;user=phone>;tag=184490972-1381155021847-
To: "Customer"<sip:2055677654@10.10.90.23>
Call-ID: BW1410218470710132124464962@65.211.120.226
CSeq: 161518092 INVITE
Contact: <sip:2052343232@10.10.90.25:5060;transport=udp>
Allow: ACK,BYE,CANCEL,INFO,INVITE,OPTIONS,PRACK,REFER,NOTIFY
Accept: application/media_control+xml,application/sdp,multipart/mixed
Supported:
Max-Forwards: 68
Content-Type: application/sdp
Content-Length: 203
v=0
o=BroadWorks 2978824933 1 IN IP4 10.10.90.25
s=-
c=IN IP4 10.10.90.25
t=0 0
m=audio 7176 RTP/AVP 18 0 8 101
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=ptime:20
a=fmtp:18 annexb=no Source Filename: SDL005_100_000390.txt


47894370.001 |09:10:21.889 |AppInfo  |//SIP/SIPUdp/wait_SdlSPISignal: Outgoing SIP UDP message to 10.10.90.25:[5060]:
[19287419,NET]
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 10.10.90.25:5060;branch=z9hG4bK1bf7h72008ogakst05g0.1
From: "WIRELESS CALLER"<sip:2052343232@10.10.90.25;user=phone>;tag=184490972-1381155021847-
To: "Customer"<sip:2055677654@10.10.90.23>
Date: Mon, 07 Oct 2013 14:10:21 GMT
Call-ID: BW1410218470710132124464962@65.211.120.226
CSeq: 161518092 INVITE
Allow-Events: presence
Content-Length: 0
 Source Filename: SDL005_100_000390.txt


 47894443.001 |09:10:21.903 |AppInfo  |//SIP/SIPUdp/wait_SdlSPISignal: Outgoing SIP UDP message to 10.10.90.25:[5060]:
[19287420,NET]
SIP/2.0 180 Ringing
Via: SIP/2.0/UDP 10.10.90.25:5060;branch=z9hG4bK1bf7h72008ogakst05g0.1
From: "WIRELESS CALLER"<sip:2052343232@10.10.90.25;user=phone>;tag=184490972-1381155021847-
To: "Customer"<sip:2055677654@10.10.90.23>;tag=4185150~567e8d26-7117-4539-a1ae-3578bcf85b47-98225748
Date: Mon, 07 Oct 2013 14:10:21 GMT
Call-ID: BW1410218470710132124464962@65.211.120.226
CSeq: 161518092 INVITE
Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY
Allow-Events: presence
Supported: X-cisco-srtp-fallback
Supported: Geolocation
Contact: <sip:2055677654@10.10.90.23:5060>
Content-Length: 0
 Source Filename: SDL005_100_000390.txt


 47895448.001 |09:10:23.125 |AppInfo  |//SIP/SIPUdp/wait_SdlSPISignal: Outgoing SIP UDP message to 10.10.90.25:[5060]:
[19287452,NET]
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.10.90.25:5060;branch=z9hG4bK1bf7h72008ogakst05g0.1
From: "WIRELESS CALLER"<sip:2052343232@10.10.90.25;user=phone>;tag=184490972-1381155021847-
To: "Customer"<sip:2055677654@10.10.90.23>;tag=4185150~567e8d26-7117-4539-a1ae-3578bcf85b47-98225748
Date: Mon, 07 Oct 2013 14:10:21 GMT
Call-ID: BW1410218470710132124464962@65.211.120.226
CSeq: 161518092 INVITE
Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY
Allow-Events: presence, kpml
Supported: replaces
Supported: X-cisco-srtp-fallback
Supported: Geolocation
Contact: <sip:2055677654@10.10.90.23:5060>
Content-Type: application/sdp
Content-Length: 259
v=0
o=CiscoSystemsCCM-SIP 4185150 1 IN IP4 10.10.90.23
s=SIP Call
c=IN IP4 10.110.135.61
b=TIAS:8000
b=AS:8
t=0 0
m=audio 27318 RTP/AVP 18 101
a=rtpmap:18 G729/8000
a=ptime:20
a=fmtp:18 annexb=no
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15 Source Filename: SDL005_100_000390.txt


47895496.001 |09:10:23.331 |AppInfo  |//SIP/SIPUdp/wait_UdpDataInd: Incoming SIP UDP message size 487 from 10.10.90.25:[5060]:
[19287453,NET]
ACK sip:2055677654@10.10.90.23:5060 SIP/2.0
Via: SIP/2.0/UDP 10.10.90.25:5060;branch=z9hG4bKgjit49107ofg7j08i4s1.1
From: "WIRELESS CALLER"<sip:2052343232@10.10.90.25;user=phone>;tag=184490972-1381155021847-
To: "Customer"<sip:2055677654@10.10.90.23>;tag=4185150~567e8d26-7117-4539-a1ae-3578bcf85b47-98225748
Call-ID: BW1410218470710132124464962@65.211.120.226
CSeq: 161518092 ACK
Contact: <sip:2052343232@10.10.90.25:5060;transport=udp>
Max-Forwards: 68
Content-Length: 0
 Source Filename: SDL005_100_000390.txt


 47899066.001 |09:10:29.980 |AppInfo  |//SIP/SIPUdp/wait_SdlSPISignal: Outgoing SIP UDP message to 10.10.90.25:[5060]:
[19287561,NET]
BYE sip:2052343232@10.10.90.25:5060;transport=udp SIP/2.0
Via: SIP/2.0/UDP 10.10.90.23:5060;branch=z9hG4bK28496437dc5c60
From: "Customer"<sip:2055677654@10.10.90.23>;tag=4185150~567e8d26-7117-4539-a1ae-3578bcf85b47-98225748
To: "WIRELESS CALLER"<sip:2052343232@10.10.90.25;user=phone>;tag=184490972-1381155021847-
Date: Mon, 07 Oct 2013 14:10:23 GMT
Call-ID: BW1410218470710132124464962@65.211.120.226
User-Agent: Cisco-CUCM9.1
Max-Forwards: 70
CSeq: 101 BYE
Reason: Q.850;cause=16
Content-Length: 0
 Source Filename: SDL005_100_000390.txt


 47899077.001 |09:10:30.044 |AppInfo  |//SIP/SIPUdp/wait_UdpDataInd: Incoming SIP UDP message size 368 from 10.10.90.25:[5060]:
[19287562,NET]
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.10.90.23:5060;branch=z9hG4bK28496437dc5c60
From: "Customer"<sip:2055677654@10.10.90.23>;tag=4185150~567e8d26-7117-4539-a1ae-3578bcf85b47-98225748
To: "WIRELESS CALLER"<sip:2052343232@10.10.90.25;user=phone>;tag=184490972-1381155021847-
Call-ID: BW1410218470710132124464962@65.211.120.226
CSeq: 101 BYE
Content-Length: 0
 Source Filename: SDL005_100_000390.txt