Example call trace with notes

Owned by Kelli Higdon
Last updated: Mar 01, 2024
7 min read

This article contains an example of an annotated call trace from the Dialogic IMG 1010 Integrated Media Gateway, Dialogic IMG 1004 Integrated Media Gateway or Dialogic IMG 2020 Integrated Media Gateway (IMG 2020), formerly referred to as Dialogic BorderNet™ 2020 Session Border Controller.

The following call trace shows a call from SS7 to SIP.   Comments and notes that help explain the contents of the trace have been added in bold.

The first information to look for in the  is the call ID data, which in the trace below is 00:00005:00

  • The first field is a single byte containing the Node ID 00:00005:00

  • The 2nd field of 3 bytes is the IMG call ID 00:00005:00

  • The 3rd field is a single byte that indicates the Leg of the call; 00:00005:00 indicates the Ingress leg and 00:00005:01 indicates the egress leg.

CALL> 18:56:22.550 CALL(SS7) (00:00005:00)

RCVD: STK: 0 PRI: 00

DPC: 3-2-5 OPC: 8-7-3

SLS: 0x00 CIC: 00000 (0x0000)

IAM [0020010003060e039090a20883d066091932540f0a070393592463798700]

18:56:22.550 CALL(SS7) (00:00005:00) RCVD IAM from (0x80703:0x30205:0) //CALL ID 00:00005:00 INGRESS LEG

18:56:22.550 CALL(SS7) (00:00005:00) Leg 0 associated with LTS(193)(span 2 chan0)

18:56:22.550 CALL(SS7) (00:00005:00) SENT Setup Ind w/info (0x80703:0x30205:0)to L4

18:56:22.550 CALL(L4) (00:00005:00) RCVD Setup Ind from SS7

18:56:22.550 CALL(L4) (00:00005:00) SENT RFS to GCL

18:56:22.550 CALL(GCL) (00:00005:00) RCVD RFS DN=[6690912345f] ANI=[9542369778]from L4

18:56:22.550 CALL(GCL) (00:00005:00) ANI APRI=[0],SI=[3],Category=[0]//ANI APRI=[0]Presentation Allowed,SI=[3]Network Provided, Category=[0]Unknown
18:56:22.550 CALL(GCL) (00:00005:00) DN NOA=[3]//DN NOA=[3]National Number
18:56:22.550 CALL(GCL) (00:00005:00) Incoming Channel Group = 0 [SS7_Lab1_interop]

18:56:22.550 CALL(GCL) (00:00005:00) DPE Input :DN=[6690912345f] ANI=[9542369778] GN=[]

18:56:22.550 CALL(GCL) (00:00005:00) DPE input plus(+) sign mask 0x00000000

18:56:22.550 CALL(GCL) (00:00005:00) Invoke Incoming DPE 2; Channel Group 0//DPE 2= Incoming Translation Table ID:2
18:56:22.550 CALL(GCL) (00:00005:00) DPE response: Proc Complete

18:56:22.550 CALL(GCL) (00:00005:00) DPE Output:DN=[6612345] ANI=[9542369778] GN=[]//GN= Generic Number
18:56:22.550 CALL(GCL) (00:00005:00) DPE output plus(+) sign mask 0x00000000

18:56:22.550 CALL(GCL) (00:00005:00) SENT Make Call Request to GCL

18:56:22.550 CALL(GCL) (00:00005:01) SENT Route Control to L4 //CALL ID 00:00005:01 EGRESS LEG

18:56:22.550 CALL(L4) (00:00005:00) RCVD RFS response from GCL

18:56:22.550 CALL(L4) (00:00005:00) RCVD Route Control from GCL

18:56:22.550 CALL(L4) (00:00005:00) Accessing Route Table 5

18:56:22.550 CALL(L4) (00:00005:00) Accessing Route Table 5//Dipping Route Table ID:5
18:56:22.550 CALL(GCL) (00:00005:01) RCVD Route Control Ack (Mid Stream Router)from L4

18:56:22.550 CALL(GCL) (00:00005:01) DPE Input :DN=[6612345] ANI=[9542369778] GN=[]

18:56:22.550 CALL(GCL) (00:00005:01) DPE input plus(+) sign mask 0x00000000

18:56:22.550 CALL(GCL) (00:00005:01) Invoke Outgoing DPE 5; Channel Group 11//DPE 5= Outgoing Translation Table ID:5
18:56:22.550 CALL(GCL) (00:00005:01) DPE response: Proc Complete

18:56:22.550 CALL(GCL) (00:00005:01) DPE Output:DN=[919545629083f] ANI=[9542369778] GN=[]

18:56:22.550 CALL(GCL) (00:00005:01) DPE output plus(+) sign mask 0x00000000

18:56:22.550 CALL(GCL) (00:00005:01) Outgoing Channel Group = 11 [Interop_IMG]

18:56:22.550 CALL(GCL) (00:00005:01) SENT Route Control to L4

18:56:22.550 CALL(L4) (00:00005:01) RCVD Route Control from GCL

18:56:22.550 CALL(L4) (00:00005:01) Accessing Resource Table 1

18:56:22.550 CALL(L4) (00:00005:01) Resource Group ID is 1

18:56:22.550 CALL(L4) (00:00005:01) Hunting Algorithm is Round Robin

18:56:22.560 CALL(L4) (00:00005:01) SENT Outseize Ctrl to SIP

18:56:22.560 CALL(GCL) (00:00005:01) RCVD CPE of ADDRESS INFO from L4

18:56:22.560 CALL(GCL) (00:00005:01) Leg 1 associated with LTS(1025)(span 4096 chan 1)

18:56:22.560 CALL(SIP) (00:00005:01) RCVD Outseize Ctrl from L4

18:56:22.560 CALL(SIP) (00:00005:01) SENT Route Control to L4

18:56:22.560 CALL(L4) (00:00005:01) RCVD Route Control from SIP

18:56:22.560 CALL(L4) (00:00005:01) Accessing GatewayId to IP Tables

18:56:22.560 CALL(L4) (00:00005:01) Gateway ID is 1042

18:56:22.560 CALL(L4) (00:00005:01) SENT Route Control Ack to SIP

18:56:22.560 CALL(SIP) (00:00005:01) RCVD Route Control Ack from L4

18:56:22.560 CALL(SIP) (00:00005:01) Session Group Profile ID is 4//Session Group Profile ID is 4= SIP/SGP Profile ID:4
18:56:22.560 CALL(SIP) (00:00005:01) SENT Route Control to L4

18:56:22.560 CALL(L4) (00:00005:01) RCVD Route Control from SIP

18:56:22.560 CALL(L4) (00:00005:01) Accessing IP Bearer Profiles

18:56:22.560 CALL(L4) (00:00005:01) Profile Id 1 (RG 769)//Profile Id 1= IP Bearer Profile ID:1

18:56:22.560 CALL(L4) (00:00005:01) SENT Route Control Ack to SIP

18:56:22.560 CALL(SIP) (00:00005:01) RCVD Route Control Ack from L4

18:56:22.560 CALL(SIP) (00:00005:01) REM TP port=5060 transport:0

18:56:22.560 CALL(SIP) (00:00005:01) SENT INVITE W/SDP to 208.209.43.40:5060 Cseq:1

18:56:22.560 CALL(SIP) (00:00005:01) with R-URI: 208.209.43.40:5060 UDP

18:56:22.560 CALL(SIP) (00:00005:01) and Call-id: 6c48-401-0201970185622-IMG_LAB1-0-10.129.52.134

18:56:22.560 CALL(SIP) (00:00005:01)INVITE sip:919545629083#@208.209.43.40:5060 SIP/2.0\r\n <--- [208.209.43.40, 5060 <- 10.129.52.134, 5060]

 

Via: SIP/2.0/UDP 10.129.52.134:5060;rport;branch=z9hG4bK

-42f7-1709782-4996-232\r\n

Call-ID: 6c48-401-0201970185622-IMG_LAB1-0-10.129.52.134

\r\n

CSeq: 1 INVITE\r\n

Max-Forwards: 70\r\n

To: <sip:919545629083#@208.209.43.40:5060>\r\n
From: "9542369778"<sip:9542369778@10.129.52.134>;tag=95f
fcd055e0f78f7d5d397020e89288d6195f543\r\n
User-Agent: Dialogic-SIP/10.5.3.149 IMG_LAB1 0\r\n
P-Asserted-Identity: "9542369778"<sip:9542369778@10.129.
52.134>\r\n
Contact: <sip:9542369778@10.129.52.134:5060>\r\n
Allow: INVITE, BYE, REGISTER, ACK, OPTIONS, CANCEL, SUBS
CRIBE, NOTIFY, INFO, REFER, UPDATE\r\n
Supported: path, replaces, timer, tdialog\r\n
Session-Expires: 1800\r\n
Expires: 300\r\n
Organization: Dialogic\r\n
Content-Type: application/sdp\r\n
Content-Length: 267\r\n
\r\n
v=0\r\n
o=Dialogic_SDP 3 0 IN IP4 10.129.52.134\r\n
s=Dialogic-SIP\r\n
c=IN IP4 10.129.52.135\r\n
t=0 0\r\n
m=audio 8004 RTP/AVP 0 18 96\r\n
a=rtpmap:0 PCMU/8000\r\n
a=rtpmap:18 G729/8000\r\n
a=fmtp:18 annexb=yes\r\n
a=rtpmap:96 telephone-event/8000\r\n
a=fmtp:96 0-15\r\n
a=silenceSupp:off - - - -\r\n

18:56:22.580 CALL(SIP) (00:00005:01) RCVD 100 Trying from 208.209.43.40:5060 udp CSeq:1 Msg Size:405

18:56:22.580 CALL(SIP) (00:00005:01)
---> [208.209.43.40, 5060 -> 10.129.52.134, 5060]
SIP/2.0 100 Trying\r\n
Via: SIP/2.0/UDP 10.129.52.134:5060;rport;branch=z9hG4bK
-42f7-1709782-4996-232;received=10.129.52.134\r\n
Call-ID: 6c48-401-0201970185622-IMG_LAB1-0-10.129.52.134
\r\n
From: "9542369778"<sip:9542369778@10.129.52.134>;tag=95f
fcd055e0f78f7d5d397020e89288d6195f543\r\n
To: <sip:919545629083#@208.209.43.40:5060>\r\n
CSeq: 1 INVITE\r\n
Server: Dialogic-SIP/10.5.3.145 Tech_Support 0\r\n
Content-Length: 0\r\n
\r\n

18:56:23.080 CALL(SIP) (00:00005:01) RCVD 183 Session Progress W/SDP from 208.209.43.40:5060 udp CSeq:1 Msg Size:780

18:56:23.080 CALL(SIP) (00:00005:01)
---> [208.209.43.40, 5060 -> 10.129.52.134, 5060]
SIP/2.0 183 Session Progress\r\n
Via: SIP/2.0/UDP 10.129.52.134:5060;rport;branch=z9hG4bK
-42f7-1709782-4996-232;received=10.129.52.134\r\n
Call-ID: 6c48-401-0201970185622-IMG_LAB1-0-10.129.52.134\r\n
From: "9542369778"<sip:9542369778@10.129.52.134>;tag=95f
fcd055e0f78f7d5d397020e89288d6195f543\r\n
To: <sip:919545629083#@208.209.43.40:5060>;tag=a94c095b7
73be1dd6e8d668a785a9c84457105b0\r\n
Contact: <sip:919545629083#@208.209.43.40:5060>\r\n
CSeq: 1 INVITE\r\n
Allow: OPTIONS, CANCEL, UPDATE\r\n
Server: Dialogic-SIP/10.5.3.145 Tech_Support 0\r\n
Content-Type: application/sdp\r\n
Content-Length: 206\r\n
\r\n
v=0\r\n
o=Dialogic_SDP 226 0 IN IP4 208.209.43.40\r\n
s=Dialogic-SIP\r\n
c=IN IP4 208.209.43.41\r\n
t=0 0\r\n
m=audio 8408 RTP/AVP 0 96\r\n
a=rtpmap:0 PCMU/8000\r\n
a=rtpmap:96 telephone-event/8000\r\n
a=fmtp:96 0-15\r\n
a=ptime:20\r\n

18:56:23.080 CALL(SIP) (00:00005:01) SENT Outseize Ack to L4
18:56:23.080 CALL(SIP) (00:00005:01) SENT Cut-Thru to L4
18:56:23.080 CALL(SIP) (00:00005:01) m line (audio) codec list: 0 96
18:56:23.080 CALL(SIP) (00:00005:01) RTP Type: 0, name: PCMU, clk: 8000
18:56:23.080 CALL(SIP) (00:00005:01) RTP Type: 96, name: telephone-event, clk: 8000
18:56:23.080 CALL(SIP) (00:00005:01) SENT CDR Msg Event to L4
18:56:23.080 CALL(SIP) (00:00005:01) Set media src IP 10.129.52.135:8004// 10.129.52.135:8004= IP and RTP Port being used by the IMG
18:56:23.080 CALL(SIP) (00:00005:01) Set media dst IP 208.209.43.41:8408//208.209.43.41:8408= IP and RTP Port being used by the Egress Channel Group
18:56:23.080 CALL(SIP) (00:00005:01) CODEC Negotiation Priority LOCAL
18:56:23.080 CALL(SIP) (00:00005:01) Set media PLD ID 2
18:56:23.080 CALL(SIP) (00:00005:01) Set media PLD Size 20, Multiplier:4
18:56:23.080 CALL(SIP) (00:00005:01) RFC 2833 DTMF Relay Enabled, pld type 96
18:56:23.080 CALL(SIP) (00:00005:01) Set Fax Type to Relay T.38
18:56:23.080 CALL(SIP) (00:00005:01) Source Port Validation : Enabled
18:56:23.080 CALL(SIP) (00:00005:01) SENT L3-L3 Outseize Ctrl to VPPL
18:56:23.080 CALL(L4) (00:00005:01) RCVD Outseize ACK from SIP
18:56:23.080 CALL(L4) (00:00005:01) RCVD Cut Thru from SIP
18:56:23.080 CALL(L4) (00:00005:01) SENT CDR Msg Event to GCL
18:56:23.080 CALL(IP) (00:00005:01) RCVD Outseize ([vts 1] [m0.1.1]) from L3P (span 4096 chan 1)
18:56:23.080 CALL(IP) (00:00005:01) RTP: (Src) 10.129.52.135:8004
18:56:23.080 CALL(IP) (00:00005:01) RTP: (Dst) 208.209.43.41:8408
18:56:23.080 CALL(GCL) (00:00005:01) RCVD CDR Msg Event from L4
18:56:23.080 CALL(GCL) (00:00005:00) SENT Connect w/Pad Response to L4
18:56:23.080 CALL(L4) (00:00005:01) SENT CutThru to L4
18:56:23.080 CALL(L4) (00:00005:01) IW: RFC 3398 183 --> ISUP condition [00]
18:56:23.080 CALL(L4) (00:00005:01) 183 -> ACM/CPG by defalut
18:56:23.080 CALL(L4) (00:00005:00) SENT Alerting to SS7
18:56:23.080 CALL(L4) (00:00005:00) SENT connect_1way: r_ts=0x401 l_ts=0xc1 to TSI
18:56:23.080 CALL(L4) (00:00005:01) SENT connect_1way: r_ts=0xc1 l_ts=0x401 toTSI
18:56:23.080 CALL(SIP) (00:00005:01) RCVD Host Connect from L4
18:56:23.080 CALL(SS7) (00:00005:00) RCVD Alerting (0x30205:0x80703:0) from L4
18:56:23.080 CALL(SS7) (00:00005:00)
SENT: STK: 0 PRI: 01
DPC: 8-7-3 OPC: 3-2-5
SLS: 0x00 CIC: 00000 (0x0000)
ACM [120400]
18:56:23.080 CALL(SS7) (00:00005:00) SENT ACM to (0x30205:0x80703:0)
18:56:23.080 CALL(IP) (00:00005:01) VoIP Codec is G711Mulaw; Payload Size is 20 ms//VoIP Codec is G711Mulaw= Codec Negotiated
18:56:23.080 CALL(IP) (00:00005:01) Fax Mode is T.38 Relay, Modem Mode is Bypass
18:56:23.080 CALL(IP) (00:00005:01) RFC2833 DTMF Relay in use, Dynamic Payload Type is 96
18:56:23.100 CALL(IP) (00:00005:01) SENT Outseize ACK (toPvid: x66) to L3P
18:56:23.100 CALL(SIP) (00:00005:01) RCVD Outseize Ack from VPPL
18:56:23.100 CALL(SIP) (00:00005:01) RCVD Cut Thru from VPPL
18:56:23.100 CALL(SIP) (00:00005:01) RCVD Connect from VPPL
18:56:30.020 CALL(SIP) (00:00005:01) RCVD 200 OK INVITE W/SDP from 208.209.43.40:5060 udp CSeq:1 Msg Size:983

18:56:30.020 CALL(SIP) (00:00005:01)
---> [208.209.43.40, 5060 -> 10.129.52.134, 5060]
SIP/2.0 200 OK\r\n
Via: SIP/2.0/UDP 10.129.52.134:5060;rport;branch=z9hG4bK
-42f7-1709782-4996-232;received=10.129.52.134\r\n
Call-ID: 6c48-401-0201970185622-IMG_LAB1-0-10.129.52.134\r\n
From: "9542369778"<sip:9542369778@10.129.52.134>;tag=95f
fcd055e0f78f7d5d397020e89288d6195f543\r\n
To: <sip:919545629083#@208.209.43.40:5060>;tag=a94c095b7
73be1dd6e8d668a785a9c84457105b0\r\n
Contact: <sip:919545629083#@208.209.43.40:5060>\r\n
CSeq: 1 INVITE\r\n
Server: Dialogic-SIP/10.5.3.145 Tech_Support 0\r\n
Allow: INVITE, BYE, REGISTER, ACK, OPTIONS, CANCEL, SUBS
CRIBE, NOTIFY, INFO, REFER, UPDATE\r\n
Supported: path, replaces, timer, tdialog\r\n
Require: timer\r\n
Session-Expires: 1800;refresher=uas\r\n
Accept: application/sdp, application/dtmf-relay, text/plain\r\n
Content-Type: application/sdp\r\n
Content-Length: 206\r\n
\r\n
v=0\r\n
o=Dialogic_SDP 226 0 IN IP4 208.209.43.40\r\n
s=Dialogic-SIP\r\n
c=IN IP4 208.209.43.41\r\n
t=0 0\r\n
m=audio 8408 RTP/AVP 0 96\r\n
a=rtpmap:0 PCMU/8000\r\n
a=rtpmap:96 telephone-event/8000\r\n
a=fmtp:96 0-15\r\n
a=ptime:20\r\n

18:56:30.020 CALL(SIP) (00:00005:01) Session Refresh Interval=1800 seconds
18:56:30.020 CALL(SIP) (00:00005:01) Refresher=Remote Method=re-INVITE
18:56:30.020 CALL(SIP) (00:00005:01) SENT ACK WO/SDP to 208.209.43.40:5060 Cseq:1
18:56:30.020 CALL(SIP) (00:00005:01) with R-URI: 208.209.43.40:5060 UDP

18:56:30.020 CALL(SIP) (00:00005:01)
<--- [208.209.43.40, 5060 <- 10.129.52.134, 5060]
ACK sip:919545629083#@208.209.43.40:5060 SIP/2.0\r\n
Via: SIP/2.0/UDP 10.129.52.134:5060;rport;branch=z9hG4bK
-5a9-1709790-4996-232\r\n
Call-ID: 6c48-401-0201970185622-IMG_LAB1-0-10.129.52.134\r\n
CSeq: 1 ACK\r\n
Max-Forwards: 70\r\n
To: <sip:919545629083#@208.209.43.40:5060>;tag=a94c095b7
73be1dd6e8d668a785a9c84457105b0\r\n
From: <sip:9542369778@10.129.52.134>;tag=95ffcd055e0f78f
7d5d397020e89288d6195f543\r\n
User-Agent: Dialogic-SIP/10.5.3.149 IMG_LAB1 0\r\n
Content-Length: 0\r\n
\r\n

18:56:30.020 CALL(SIP) (00:00005:01) SENT Connect to L4
18:56:30.020 CALL(SIP) (00:00005:01) Start 1768 Seconds Session End Timer
18:56:30.020 CALL(L4) (00:00005:01) RCVD Connect from SIP
18:56:30.020 CALL(L4) (00:00005:01) SENT CPE of ANSWER to GCL
18:56:30.020 CALL(GCL) (00:00005:01) RCVD CPE of ANSWER from L4
18:56:30.020 CALL(GCL) (00:00005:01) SENT Call Answered to GCL
18:56:30.020 CALL(GCL) (00:00005:00) SENT CPE of ANSWER to L4
18:56:30.020 CALL(L4) (00:00005:00) RCVD CPE of ANSWER from GCL
18:56:30.020 CALL(L4) (00:00005:00) SENT Connect to SS7
18:56:30.020 CALL(SS7) (00:00005:00) RCVD Connect (0x30205:0x80703:0) from L4
18:56:30.020 CALL(SS7) (00:00005:00)
SENT: STK: 0 PRI: 02
DPC: 8-7-3 OPC: 3-2-5
SLS: 0x00 CIC: 00000 (0x0000)
ANM [00]
18:56:30.020 CALL(SS7) (00:00005:00) SENT ANM to (0x30205:0x80703:0)
18:56:32.160 CALL(SIP) (00:00005:01) Reason Hdr: "Normal call clearing"
18:56:32.160 CALL(SIP) (00:00005:01) RCVD BYE from 208.209.43.40:5060 udp CSeq://Egress Released the Call with CC=16, Normal call clearing
1 Msg Size:518
18:56:32.160 CALL(SIP) (00:00005:01) with Via sent-by: 208.209.43.40 UDP

18:56:32.160 CALL(SIP) (00:00005:01)
---> [208.209.43.40, 5060]
BYE sip:9542369778@10.129.52.134:5060 SIP/2.0\r\n
Via: SIP/2.0/UDP 208.209.43.40:5060;rport;branch=z9hG4bK
-6ca8-1279546820-4773-232\r\n
Call-ID: 6c48-401-0201970185622-IMG_LAB1-0-10.129.52.134\r\n
CSeq: 1 BYE\r\n
Max-Forwards: 70\r\n
To: <sip:9542369778@10.129.52.134>;tag=95ffcd055e0f78f7d
5d397020e89288d6195f543\r\n
From: <sip:919545629083#@208.209.43.40:5060>;tag=a94c095
b773be1dd6e8d668a785a9c84457105b0\r\n
User-Agent: Dialogic-SIP/10.5.3.145 Tech_Support 0\r\n
Reason: Q.850 ;cause=16 ;text="Normal call clearing"\r\n

Content-Length: 0\r\n
\r\n

18:56:32.160 CALL(SIP) (00:00005:01) SENT L3-L3 Clear Req to VPPL
18:56:32.160 CALL(IP) (00:00005:01) RCVD Clear Request from L3P
18:56:32.160 CALL(IP) (00:00005:01) RTCP STATS: TxPackets=452; RxPackets=191; lostPackets=0//RTP Tx,RCVD, and Lost Packets
18:56:32.160 CALL(SIP) (00:00005:01) RCVD Clear Req from VPPL
18:56:32.160 CALL(SIP) (00:00005:01) SENT Clear Request to L4
18:56:32.160 CALL(SIP) (00:00005:01) SENT 200 OK BYE to 208.209.43.40:5060 UDP

18:56:32.160 CALL(SIP) (00:00005:01)
<--- [208.209.43.40, 5060 <- 10.129.52.134, 5060]
SIP/2.0 200 OK\r\n
Via: SIP/2.0/UDP 208.209.43.40:5060;rport;branch=z9hG4bK
-6ca8-1279546820-4773-232;received=208.209.43.40\r\n
Call-ID: 6c48-401-0201970185622-IMG_LAB1-0-10.129.52.134\r\n
From: <sip:919545629083#@208.209.43.40:5060>;tag=a94c095
b773be1dd6e8d668a785a9c84457105b0\r\n
To: <sip:9542369778@10.129.52.134>;tag=95ffcd055e0f78f7d
5d397020e89288d6195f543\r\n
Contact: <sip:9542369778@10.129.52.134:5060>\r\n
CSeq: 1 BYE\r\n
Server: Dialogic-SIP/10.5.3.149 IMG_LAB1 0\r\n
Content-Length: 0\r\n
\r\n

18:56:32.160 CALL(L4) (00:00005:01) RCVD Clear request from SIP
18:56:32.160 CALL(L4) (00:00005:01) SENT disconnect: r_ts=0xc1 l_ts=0x401 to TSI
18:56:32.160 CALL(L4) (00:00005:00) SENT disconnect: r_ts=0x401 l_ts=0xc1 to TSI
18:56:32.160 CALL(L4) (00:00005:01) SENT Channel Release w/data to GCL
18:56:32.160 CALL(GCL) (00:00005:01) RCVD Channel Released w/data, cause=16 from L4
18:56:32.160 CALL(GCL) (00:00005:01) Call Duration(sec): 2 //Call Duration on the Egress Leg
18:56:32.160 CALL(GCL) (00:00005:01) SENT Clear Call Request to GCL
18:56:32.160 CALL(GCL) (00:00005:00) SENT Park Port to L4
18:56:32.160 CALL(L4) (00:00005:00) RCVD Park from GCL
18:56:32.160 CALL(GCL) (00:00005:00) SENT Clear Response, cause=16 to L4
18:56:32.160 CALL(L4) (00:00005:00) RCVD Clear, cause=16 from GCL
18:56:32.160 CALL(L4) (00:00005:00) SENT Clear Request to SS7
18:56:32.160 CALL(SS7) (00:00005:00) RCVD Clear Request (0x30205:0x80703:0) from L4
18:56:32.160 CALL(SS7) (00:00005:00)
SENT: STK: 0 PRI: 01
DPC: 8-7-3 OPC: 3-2-5
SLS: 0x00 CIC: 00000 (0x0000)
REL [0200028090]
18:56:32.160 CALL(SS7) (00:00005:00) SENT REL cause 16 to (0x30205:0x80703:0)
18:56:32.280 CALL(SS7) (00:00005:00)
RCVD: STK: 0 PRI: 02
DPC: 3-2-5 OPC: 8-7-3
SLS: 0x00 CIC: 00000 (0x0000)
RLC []
18:56:32.280 CALL(SS7) (00:00005:00) RCVD RLC from (0x80703:0x30205:0)
18:56:32.280 CALL(SS7) (00:00005:00) SENT Clear Request (0x80703:0x30205:0) to L4
18:56:32.280 CALL(L4) (00:00005:00) RCVD Clear request from SS7
18:56:32.280 CALL(L4) (00:00005:00) SENT Channel Release w/data to GCL
18:56:32.280 CALL(GCL) (00:00005:00) RCVD Channel Released w/data, cause=none from L4
18:56:32.280 CALL(GCL) (00:00005:00) Call Duration(sec): 2//Call Duration on the Ingress Leg


Call flow diagram 


Product List
Dialogic IMG 1010 Integrated Media Gateway
Dialogic IMG 2020 Integrated Media Gateway (IMG 2020), formerly referred to as Dialogic BorderNet™ 2020 Session Border Controller

Glossary of Acronyms / Terms
APRI= ANI Presentation Indicator
SI= Screening Indicator
Category= Calling Party Category
NOA= Nature of Address
DPE= Dial Plan Engine
CC= Cause Code

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