Call Detail Record (CDR)
Written by B3Networks Academy
Updated at June 2nd, 2023
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Table of Contents
Introduction
CDR stands for Call Detail Record. It is a metadata containing the detailed information about the call session produced by Edge.
A CDR has various data of each leg of calls, and typically includes:
When the call took place - How long the call lasted - Who called to whom - and many more.
Edge CDR Metadata
| Attribute | Description |
|---|---|
| correlation_id | CDR mapping for far-end by SIP Header: X-EDGE-CORRELATION-ID |
| status | call status, it can be answer, cancel, congestion, etc |
| callee | destination number |
| direction | direction of the call |
| duration | duration of the call in second |
| local_media_address | edge ip address of media/rtp |
| user_agent | far-end sip user agent |
| remote_signalling_address | far-end ip address of signaling/sip |
| remote_media_address | far-end ip address of media/rtp |
| edge_network | ip address of edge processed for this call |
| uuid | leg uuid |
| rtp_crypto | media encryption suite was used for this call |
| nodename | name of node member that processed the call |
| peername | name of trunk that processed the call |
| codec | negotiated codec was used in call |
| hangup_cause | reason why call hang up |
| seshid | session uuid |
| interface | sip interface that call engaged with |
| callid | sip call id of the call |
| caller | source number |
| transport | transport protocol that SIP relies on, the value can be ucp, tcp, tls |
| sip_resp_code | well, sip response code sip:{code} |
| start_time | when the call started with format ISO8601 |
| answer_time | when the call answered with format ISO8601 |
| end_time | when the call ended with format ISO8601 |
| disposition | who hung up the call |
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{
"data" : {
"module" : "call",
"eventName" : "vendorCDRExtra",
"timestamp" : 1614575657225,
"txnUuid" : "fdd9be18-7dfa-49d0-8c47-33f3b4598917",
"legs" : {
"147d2eac-9ba8-450e-8513-65380b2866d6" : {
"edge-SGSBC" : {
"rtp_crypto" : "",
"correlation_id" : "147d2eac-9ba8-450e-8513-65380b2866d6",
"duration" : "6538",
"transport" : "udp",
"answer_time" : "2021-03-01 13:14:17",
"uuid" : "b9aac7ca-2d9f-4e0e-827d-2ffc3b51efee",
"codec" : "PCMA",
"sip_resp_code" : "sip:200",
"seshid" : "147d2eac-9ba8-450e-8513-65380b2866d6",
"hangup_cause" : "NORMAL_CLEARING",
"end_time" : "2021-03-01 13:14:17",
"status" : "ANSWERED",
"direction" : "outbound",
"iso_answer_time" : "2021-03-01T05:14:17.170092+00:00",
"nodename" : "awszntedge1",
"edge_network" : "172.31.12.2,18.140.31.74",
"callid" : "96db8896-f4e0-1239-fcb5-0677079ea32c",
"start_time" : "2021-03-01 13:14:17",
"disposition" : "EDGE_SEND_BYE",
"interface" : "voice2",
"iso_end_time" : "2021-03-01T05:14:17.170136+00:00",
"local_media_address" : "111.22.33.4:56789",
"caller" : "+6561111111",
"peername" : "SGSBC",
"iso_start_time" : "2021-03-01T05:14:17.169920+00:00",
"user_agent" : "B3Networks",
"context" : "inside",
"callee" : "+6562222222",
"remote_signalling_address" : "00.11.234.56:5060",
"remote_media_address" : "00.11.234.56:10648"
}
}
}
},
"gateKeeperSpec" : {
"domain" : "gelcccs.zonetel.com.sg",
"orgUuid" : "ea6f73ee-9960-40f9-91c3-8473ade58a8a"
},
"version" : "v1"
}