Juan,
I will explain how a sip phone signals to CUCM when making a call...Two major things happen
1. The first digit dialled is sent in the INVITE
2. The remaining digits are sent via NOTIFY (in the NOTIFY, you will see the digits that are dialled
The trace below details what happens when a sip phone makes a call. I stopped this trace after digit=8 was dialled
Called number=918772888362
Here we get INVITE with SDP from the sip phone to CUCM
29/2010 10:36:33.771 |//SIP/SIPTcp/wait_SdlReadRsp: Incoming SIP TCP message from 172.18.159.152 on port
51682 index 2321 with 1717 bytes:
INVITE sip:9@172.18.106.59;user=phone SIP/2.0 (first digit dialled =9)
Via: SIP/2.0/TLS 172.18.159.152:51682;branch=z9hG4bK1636ab61
From: "Test User 1" <89919236>;tag=00260bd9669e07147bcb3aac-3cda8f0c
To: <9>
Call-ID: 00260bd9-669e000b-588c0c2b-2193e2a3@172.18.159.152
Max-Forwards: 70
Date: Mon, 29 Mar 2010 14:36:33 GMT
CSeq: 101 INVITE
User-Agent: Cisco-CP9951/9.0.1
Contact: <4A8A8F91-609E-D655-19EA-44EEDCD7B0D6>
Expires: 180
Accept: application/sdp
Allow: ACK,BYE,CANCEL,INVITE,NOTIFY,OPTIONS,REFER,REGISTER,UPDATE,SUBSCRIBE,INFO
Remote-Party-ID: "Test User 1" <89919236>;party=calling;id-type=subscriber;privacy=off;screen=yes
Supported: replaces,join,sdp-anat,norefersub,extended-refer,X-cisco-callinfo,X-cisco-serviceuri,X-cisco-escapecodes,Xcisco-
service-control,X-cisco-srtp-fallback,X-cisco-monrec,X-cisco-config,X-cisco-sis-5.0.0,X-cisco-xsi-9.0.1
Allow-Events: kpml,dialog
Content-Length: 632
Content-Type: application/sdp
Content-Disposition: session;handling=optional
v=0
o=Cisco-SIPUA 26964 0 IN IP4 172.18.159.152
s=SIP Call
t=0 0
m=audio 29254 RTP/SAVP 0 8 18 102 9 116 124 101
c=IN IP4 172.18.159.152
a=crypto:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:102 L16/16000
a=rtpmap:9 G722/8000
a=rtpmap:116 iLBC/8000
a=fmtp:116 mode=20
a=rtpmap:124 ISAC/16000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=sendrecv
m=video 25466 RTP/AVP 97
c=IN IP4 172.18.159.152
b=TIAS:1000000
a=rtpmap:97 H264/90000
a=fmtp:97 profile-level-id=42801E
a=recvonly
+++Next CUCM sends trying++++
03/29/2010 10:36:33.773 |//SIP/SIPTcp/wait_SdlSPISignal: Outgoing SIP TCP message to 172.18.159.152 on port
51682 index 2321
SIP/2.0 100 Trying
Via: SIP/2.0/TLS 172.18.159.152:51682;branch=z9hG4bK1636ab61
From: "Test User 1" <89919236>;tag=00260bd9669e07147bcb3aac-3cda8f0c
To: <9>
Date: Mon, 29 Mar 2010 14:36:33 GMT
Call-ID: 00260bd9-669e000b-588c0c2b-2193e2a3@172.18.159.152
CSeq: 101 INVITE
Allow-Events: presence
Content-Length: 0
+++++Unified CM Sends a REFER to play Outside Dialtone++++
03/29/2010 10:36:33.780 |//SIP/SIPTcp/wait_SdlSPISignal: Outgoing SIP TCP message to 172.18.159.152 on port 51682
index 2321
REFER sip:89919236@172.18.159.152:51682 SIP/2.0
Via: SIP/2.0/TLS 172.18.106.59:5061;branch=z9hG4bK151511c5f04bf
From: <89919236>;tag=2144536187
To: <89919236>
Call-ID: 7747f400-bb01baf1-14685-3b6a12ac@172.18.106.59
CSeq: 101 REFER
Max-Forwards: 70
Contact: <89919236>
User-Agent: Cisco-CUCM8.0
Expires: 0
Refer-To: cid:1234567890@172.18.106.59
Content-Id: <1234567890@172.18.106.59>
Require: norefersub
Content-Type: application/x-cisco-remotecc-request+xml
Referred-By: <89919236>
Content-Length: 409
00260bd9-669e000b-588c0c2b-2193e2a3@172.18.159.152
97903bc0-a3de-4a15-ba27-44c81fe3adcd-45510542
00260bd9669e07147bcb3aac-3cda8f0c
DtOutsideDialTone
user
++++Unified CM Sends a SUBSCRIBE for KPML++++
03/29/2010 10:36:33.781 |//SIP/SIPTcp/wait_SdlSPISignal: Outgoing SIP TCP message to 172.18.159.152 on port 51682 index 2321
SUBSCRIBE sip:89919236@172.18.159.152:51682 SIP/2.0
Via: SIP/2.0/TLS 172.18.106.59:5061;branch=z9hG4bK1515232b4e84f
From: <9>;tag=1976165806
To: <89919236>
Call-ID: 7747f400-bb01baf1-14686-3b6a12ac@172.18.106.59
CSeq: 101 SUBSCRIBE
Date: Mon, 29 Mar 2010 14:36:33 GMT
User-Agent: Cisco-CUCM8.0
Event: kpml; call-id=00260bd9-669e000b-588c0c2b-2193e2a3@172.18.159.152; from-tag=00260bd9669e07147bcb3aac-3cda8f0c
Expires: 7200
Contact: <9>
Accept: application/kpml-response+xml
Max-Forwards: 70
Content-Type: application/kpml-request+xml
Content-Length: 424
http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="urn:ietf:params:xml:ns:kpml-request kpml-request.xsd" version="1.0">
[x#*+]|bs
++++ Phone Sends 200 OK for the REFER and SUBSCRIBE ++++
03/29/2010 10:36:33.802 |//SIP/SIPTcp/wait_SdlReadRsp: Incoming SIP TCP message from 172.18.159.152 on port 51682 index 2321 with 453
bytes:
SIP/2.0 200 OK
Via: SIP/2.0/TLS 172.18.106.59:5061;branch=z9hG4bK151511c5f04bf
From: <89919236>;tag=2144536187
To: <89919236>;tag=00260bd9669e07167c743311-343ee3af
Call-ID: 7747f400-bb01baf1-14685-3b6a12ac@172.18.106.59
Date: Mon, 29 Mar 2010 14:36:33 GMT
CSeq: 101 REFER
Server: Cisco-CP9951/9.0.1
Contact: <4A8A8F91-609E-D655-19EA-44EEDCD7B0D6>
Content-Length: 0
Phone Sends 200 OK for the REFER and SUBSCRIBE
03/29/2010 10:36:33.843 |//SIP/SIPTcp/wait_SdlReadRsp: Incoming SIP TCP message from 172.18.159.152 on port
51682 index 2321 with 465 bytes:
SIP/2.0 200 OK
Via: SIP/2.0/TLS 172.18.106.59:5061;branch=z9hG4bK1515232b4e84f
From: <9>;tag=1976165806
To: <89919236>;tag=00260bd9669e07177ee0d51d-14f56f89
Call-ID: 7747f400-bb01baf1-14686-3b6a12ac@172.18.106.59
Date: Mon, 29 Mar 2010 14:36:33 GMT
CSeq: 101 SUBSCRIBE
Server: Cisco-CP9951/9.0.1
Contact: <4A8A8F91-609E-D655-19EA-44EEDCD7B0D6>
Expires: 7200
Content-Length: 0
03/29/2010 10:36:33.843 |//SIP/SIPTcp/wait_SdlReadRsp: Incoming SIP TCP message from 172.18.159.152 on port
51682 index 2321 with 465 bytes:
SIP/2.0 200 OK
Via: SIP/2.0/TLS 172.18.106.59:5061;branch=z9hG4bK1515232b4e84f
From: <9>;tag=1976165806
To: <89919236>;tag=00260bd9669e07177ee0d51d-14f56f89
Call-ID: 7747f400-bb01baf1-14686-3b6a12ac@172.18.106.59
Date: Mon, 29 Mar 2010 14:36:33 GMT
CSeq: 101 SUBSCRIBE
Server: Cisco-CP9951/9.0.1
Contact: <4A8A8F91-609E-D655-19EA-44EEDCD7B0D6>
Expires: 7200
Content-Length: 0
Unified CM Sends a SUBSCRIBE for KPML
220
++++User Dials a ‘1’, phone sends a NOTIFY to CUCM for the digit++++
NOTIFY sip:9@172.18.106.59:5061 SIP/2.0
Via: SIP/2.0/TLS 172.18.159.152:51682;branch=z9hG4bK1cd529ba
To: <9>;tag=1976165806
From: <89919236>;tag=00260bd9669e07177ee0d51d-14f56f89
Call-ID: 7747f400-bb01baf1-14686-3b6a12ac@172.18.106.59
Date: Mon, 29 Mar 2010 14:36:33 GMT
CSeq: 1001 NOTIFY
Event: kpml
Subscription-State: active; expires=7200
Max-Forwards: 70
Contact: <4A8A8F91-609E-D655-19EA-44EEDCD7B0D6>
Allow: ACK,BYE,CANCEL,INVITE,NOTIFY,OPTIONS,REFER,REGISTER,UPDATE,SUBSCRIBE
Content-Length: 209
Content-Type: application/kpml-response+xml
Content-Disposition: session;handling=required
forced_flush="false" digits="1" tag="Backspace OK"/>
+++Unified CM Replies to NOTIFY With a 200 OK++++
03/29/2010 10:36:34.352 |//SIP/SIPTcp/wait_SdlSPISignal: Outgoing SIP TCP message to 172.18.159.152 on port 51682
index 2321
SIP/2.0 200 OK
Via: SIP/2.0/TLS 172.18.159.152:51682;branch=z9hG4bK1cd529ba
From: <89919236>;tag=00260bd9669e07177ee0d51d-14f56f89
To: <9>;tag=1976165806
Date: Mon, 29 Mar 2010 14:36:34 GMT
Call-ID: 7747f400-bb01baf1-14686-3b6a12ac@172.18.106.59
CSeq: 1001 NOTIFY
Content-Length: 0
++++Unified CM Replies Sends a REFER to Disable Outside Dialtone+++
03/29/2010 10:36:34.353 |//SIP/SIPTcp/wait_SdlSPISignal: Outgoing SIP TCP message to 172.18.159.152 on port 51682
index 2321
REFER sip:89919236@172.18.159.152:51682 SIP/2.0
Via: SIP/2.0/TLS 172.18.106.59:5061;branch=z9hG4bK151536ea86ab0
From: <89919236>;tag=1574166193
To: <89919236>
Call-ID: 77e08a80-bb01baf2-14687-3b6a12ac@172.18.106.59
CSeq: 101 REFER
Max-Forwards: 70
Contact: <89919236>
User-Agent: Cisco-CUCM8.0
Expires: 0
Refer-To: cid:1234567890@172.18.106.59
Content-Id: <1234567890@172.18.106.59>
Require: norefersub
Content-Type: application/x-cisco-remotecc-request+xml
Referred-By: <89919236>
Content-Length: 401
00260bd9-669e000b-588c0c2b-2193e2a3@172.18.159.152
97903bc0-a3de-4a15-ba27-44c81fe3adcd-45510542
00260bd9669e07147bcb3aac-3cda8f0c
Dt_NoTone
user
+++Phone Replies With 200 OK to REFER++++
03/29/2010 10:36:34.402 |//SIP/SIPTcp/wait_SdlReadRsp: Incoming SIP TCP message from 172.18.159.152 on port
51682 index 2321 with 453 bytes:
SIP/2.0 200 OK
Via: SIP/2.0/TLS 172.18.106.59:5061;branch=z9hG4bK151536ea86ab0
From: <89919236>;tag=1574166193
To: <89919236>;tag=00260bd9669e07184b08b96b-796ab86f
Call-ID: 77e08a80-bb01baf2-14687-3b6a12ac@172.18.106.59
Date: Mon, 29 Mar 2010 14:36:33 GMT
CSeq: 101 REFER
Server: Cisco-CP9951/9.0.1
Contact: <4A8A8F91-609E-D655-19EA-44EEDCD7B0D6>
Content-Length: 0
++++User Dials a ‘8’, phone sends a NOTIFY to CUCM+++
03/29/2010 10:36:34.944 |//SIP/SIPTcp/wait_SdlReadRsp: Incoming SIP TCP message from 172.18.159.152 on port
51682 index 2321 with 896 bytes:
NOTIFY sip:9@172.18.106.59:5061 SIP/2.0
Via: SIP/2.0/TLS 172.18.159.152:51682;branch=z9hG4bK647d03c1
To: <9>;tag=1976165806
From: <89919236>;tag=00260bd9669e07177ee0d51d-14f56f89
Call-ID: 7747f400-bb01baf1-14686-3b6a12ac@172.18.106.59
Date: Mon, 29 Mar 2010 14:36:34 GMT
CSeq: 1002 NOTIFY
Event: kpml
Subscription-State: active; expires=7195
Max-Forwards: 70
Contact: <4A8A8F91-609E-D655-19EA-44EEDCD7B0D6>
Allow: ACK,BYE,CANCEL,INVITE,NOTIFY,OPTIONS,REFER,REGISTER,UPDATE,SUBSCRIBE
Content-Length: 209
Content-Type: application/kpml-response+xml
Content-Disposition: session;handling=required
forced_flush="false" digits="8" tag="Backspace OK"/>
+++Unified CM Replies to NOTIFY With a 200 OK+++
03/29/2010 10:36:34.352 |//SIP/SIPTcp/wait_SdlSPISignal: Outgoing SIP TCP message to 172.18.159.152 on port 51682
index 2321
SIP/2.0 200 OK
Via: SIP/2.0/TLS 172.18.159.152:51682;branch=z9hG4bK1cd529ba
From: <89919236>;tag=00260bd9669e07177ee0d51d-14f56f89
To: <9>;tag=1976165806
Date: Mon, 29 Mar 2010 14:36:34 GMT
Call-ID: 7747f400-bb01baf1-14686-3b6a12ac@172.18.106.59
CSeq: 1001 NOTIFY
Content-Length: 0
As you can see this is similar to what you are seeing...The first digit dialled is seen in the INVITE, the remaining digits will be seen in NOTIFY.
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