Voice OUT Call Events¶

Voice OUT Call Events allow you to receive real-time call events using HTTP protocol. There are no delays caused by batching and every request contains only one event. All events are delivered with HTTP POST request. Example header:

POST /call-events HTTP/1.1
Host: 192.0.2.5
User-Agent: CDR-streamer
Accept: */*
Content-Type: text/plain
Content-Encoding: gzip
Content-Length: 2358
Expect: 100-continue

Call Start Event¶

A Call Start Event is sent to the customer using HTTP protocol after call routing process is completed by DIDWW (destination determination process). SIP INVITE will originate from DIDWW to Call Destination.

HTTP request payload example:

{
    "type": "outbound-call-start-event",
    "id": "10-10282FC6-5F632C460006A397-AC8C7700",
    "attributes": {
        "source_ip" : "1.2.3.4",
        "source_port": 5060,
        "call_id" : "3eab288b2e0eb547122434ce0e648bb5",
        "time_start": "2020-03-05T11:05:33.879559+00:00",
        "pop": "NYC",
        "original_src_number": "02089643990",
        "src_number": "123439643990",
        "dst_number": "441158720600",
        "trunk_name": "Trunk 1",
        "rate": "0.004",
        "initial_billing_interval": 1,
        "next_billing_interval": 1,
        "p_charge_info": "<sip:02089643990@customer.example.com;billing-account-id=212>",
        "diversion" : [ "<sip:+123456789@sip.didww.com>;reason=unconditional" ]
    }
}

Call Connect Event¶

A Call Connect Event is sent to the customer using HTTP protocol after 200OK/Connect is received from call legB (Destination). If the call is terminated before a successful handshake (200OK), Call Connect event will not be sent to the customer’s endpoint.

HTTP request payload example:

{
    "type": "outbound-call-connect-event",
    "id": "10-10282FC6-5F632C460006A397-AC8C7700",
    "attributes": {
        "source_ip" : "1.2.3.4",
        "source_port": 5060,
        "call_id" : "3eab288b2e0eb547122434ce0e648bb5",
        "time_start": "2020-03-05T11:05:33.879559+00:00",
        "time_connect": "2020-03-05T11:05:38.879559+00:00",
        "pop": "NYC",
        "original_src_number": "02089643990",
        "src_number": "123439643990",
        "dst_number": "441158720600",
        "trunk_name": "Trunk 1",
        "rate": "0.004",
        "initial_billing_interval": 1,
        "next_billing_interval": 1,
        "p_charge_info": "<sip:02089643990@customer.example.com;billing-account-id=212>",
        "diversion" : [ "<sip:+123456789@sip.didww.com>;reason=unconditional" ]
    }
}

Call End Event¶

A Call End Event is sent to the customer via HTTP protocol when the call is terminated in any way.

HTTP request payload example:

{
    "type": "outbound-call-end-event",
    "id": "10-10282FC6-5F632C460006A397-AC8C7700",
    "attributes": {
        "source_ip" : "1.2.3.4",
        "source_port": 5060,
        "call_id" : "3eab288b2e0eb547122434ce0e648bb5",
        "time_start": "2020-03-05T11:05:33.879559+00:00",
        "time_connect": "2020-03-05T11:05:38.879559+00:00",
        "time_end": "2020-03-05T11:05:58.879559+00:00",
        "duration": 10,
        "pop": "NYC",
        "original_src_number": "02089643990",
        "src_number": "123439643990",
        "dst_number": "441158720600",
        "trunk_name": "Trunk 1",
        "rate": "0.004",
        "initial_billing_interval": 1,
        "next_billing_interval": 1,
        "p_charge_info": "<sip:02089643990@customer.example.com;billing-account-id=212>",
        "diversion" : [ "<sip:+123456789@sip.didww.com>;reason=unconditional" ]
    }
}

Description of Event attributes:

type

String
Event type. Possible values for Voice OUT Call Events are outbound-call-start-event, outbound-call-connect-event, outbound-call-end-event

id

String
Unique call identifier. All events related to the same call will contain the same id value.

attributes

Hash
Structure contains all the CDR attributes. See description below.

source_ip

String
IP address of the call originator.

source_port

Integer
Port of the call originator.

call_id

String
SIP Call-ID of the call leg between customer’s equipment and DIDWW. All events related to the same call will contain the same call_id value.

time_start

Timestamp
Start time when the initial INVITE is received.

time_connect

Timestamp
Time of the successful handshake (200OK SIP). For non-connected calls outbound-call-connect-event will not be originated and time_connect attribute at outbound-call-end-event will be null.

time_end

Timestamp
Call disconnection time.

duration

Integer
Call duration in seconds. For non-connected calls the duration is 0.

pop

String
Location of the DIDWW equipment that processed the call. See DIDWW Point of Presence. Possible values:

NYC USA New-York
LAC USA Los Angeles
MIA USA Miami
FRA Germany, Frankfurt
SG - Singapore

original_src_number

String
Incoming Caller-ID.

src_number

String
Incoming Caller-ID after applying rewrites.

dst_number

String
Call destination number.

trunk_name

String
Outbound trunk friendly name.

rate

Numeric
Customer’s outbound call termination rate.

initial_billing_interval

Integer
Initial billing interval for the outbound call termination.

next_billing_interval

Integer
Next billing interval for the outbound call termination.

p_charge_info

String
P-Charge-Info header value is received from the call originator. This header allows customers to add custom information to DIDWW CDR for technical and/or billing purposes. See Service description for more details.

diversion

Array of Strings
Diversion header values are received from the call originator. Diversion headers order in INVITE request is preserved.