Call records represent individual CDR entries imported from carrier files. Each record contains the full detail for a single call leg, including retail and wholesale costs, duration, carrier information, and rating details.
For an audit trail of removed records, see Deleted Calls. For the merged A-leg/B-leg view, see Combined Calls vs Call Details in the Call Management guide.
Methods
GET
Retrieve Single Call
/backend/api/v1/calls/ID - fetch call with specified ID.
List Calls
/backend/api/v1/calls/ - list all calls.
/backend/api/v1/customers/ID/calls/ - list calls belonging to customer with specified ID.
/backend/api/v1/numbers/ID/calls/ - list calls belonging to number with specified ID.
/backend/api/v1/invoices/ID/calls/ - list calls on the invoice with specified ID.
/backend/api/v1/features/ID/calls/ - list calls belonging to feature with specified ID.
/backend/api/v1/transactions/ID/calls/ - list calls belonging to transaction with specified ID.
/backend/api/v1/CDRFiles/ID/calls/ - list calls from the CDR file with specified ID.
Additional Query Parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
billed |
flag | No | Only return calls that have been billed |
unbilled |
flag | No | Only return calls that have not yet been billed |
minDate |
date | No | Only return calls from this date onwards (YYYY-MM-DD) |
maxDate |
date | No | Only return calls up to this date (YYYY-MM-DD) |
Standard pagination parameters (limit, offset, idAfter, createdSince, updatedSince) are also supported.
Example Requests
Fetch unbilled calls for a customer:
curl -H "Authorization: Bearer YOUR_API_TOKEN" \
"https://YOUR_DOMAIN/backend/api/v1/customers/42/calls/?unbilled"
Fetch calls on a specific invoice:
curl -H "Authorization: Bearer YOUR_API_TOKEN" \
"https://YOUR_DOMAIN/backend/api/v1/invoices/1085/calls/"
Fetch calls within a date range:
curl -H "Authorization: Bearer YOUR_API_TOKEN" \
"https://YOUR_DOMAIN/backend/api/v1/numbers/7/calls/?minDate=2026-01-01&maxDate=2026-01-31"
Fields
| Field | Name | Type | Description |
|---|---|---|---|
| target | Billed Number (CDR) | Text | The phone number that was billed for this call as reported in the CDR |
| numberID | Number | Text | The ID of the number that was billed for this call |
| extension | Extension | Text | The extension number used for this call, if applicable |
| external | Third Party Number | Text | The third-party number that was called or that called the billed number |
| terminationNumber | Termination Number | Text | The number where this call terminated |
| location | Location | Preset Value | The geographic location associated with this call |
| locationFull | Full Location | Preset Value | The full location details associated with this call |
| locationCarrier | Carrier Location | Text | The location information provided by the carrier for this call |
| terminationLocation | Termination Location | Preset Value | The geographic location where this call terminated |
| terminationLocationFull | Full Termination Location | Preset Value | The full location details where this call terminated |
| callTypeDirectionFlag | Call Leg | Preset Value | Indicates whether this is an inbound or outbound call (A-leg, B-leg) |
| chargeBand | Carrier Charge Band | Text | The charge band used by the carrier to bill this call |
| tariffType | Call Type (Calculated) | Preset Value | The calculated call type used for billing this call |
| tariffTypeCarrier | Call Type (Carrier) | Preset Value | The call type reported by the carrier for this call |
| callTypeOriginationTypeFlag | Call Origination Type | Preset Value | Indicates the type of origination for this call if applicable (e.g., mobile, landline, payphone) |
| callTypeRecordingFlag | Call Recording | Preset Value | Indicates whether this call was recorded |
| startDate | Call Date | Date | The date when the call occurred |
| startTime | Call Time | Text | The time when the call started |
| tariffTime | Rating Period | Preset Value | The time period rating applied to this call (e.g., daytime, evening, weekend) |
| duration | Duration (s) | Number | The duration of the call in seconds |
| bytes | Data Usage (Bytes) | Number | The amount of data used during this session in bytes |
| events | Events | Number | The number of events recorded during this session |
| answerTime | Answer Time (s) | Number | The time in seconds between call setup and answer |
| costBase | Retail Cost (p) | Text | The base retail cost of this call in pence before any discounts |
| cost | Retail Cost (Discounted) (p) | Text | The retail cost of this call in pence after applying any discounts |
| costCDR | Wholesale Cost (p) | Text | The wholesale cost of this call in pence as reported by the carrier |
| costCarrier | Calculated Wholesale Cost (p) | Text | The calculated wholesale cost of this call in pence based on internal rate tables |
| costSuggestedRetail | Suggested Retail Cost (p) | Text | The suggested retail cost for this call in pence |
| costBaseBasic | Basic Retail Cost (p) | Text | The basic retail cost of this call in pence, excluding any surcharges |
| costBaseAccessCharge | Retail Access Charge | Text | The retail access charge component of this call in pence |
| costBaseSurchargeMobileOrigination | Retail Mobile Origination Surcharge | Text | The retail mobile origination surcharge component of this call in pence |
| costBaseSurchargePayphoneOrigination | Retail Payphone Origination Surcharge | Text | The retail payphone origination surcharge component of this call in pence |
| costBaseSurchargeCallRecording | Retail Cost Call Recording Surcharge | Text | The retail call recording surcharge component of this call in pence |
| costBasic | Basic Retail Cost (Discounted) (p) | Text | The discounted basic retail cost of this call in pence |
| costAccessCharge | Retail Access Charge (Discounted) (p) | Text | The discounted retail access charge component of this call in pence |
| costSurchargeMobileOrigination | Retail Mobile Origination Surcharge (Discounted) (p) | Text | The discounted retail mobile origination surcharge component of this call in pence |
| costSurchargePayphoneOrigination | Retail Payphone Origination Surcharge (Discounted) (p) | Text | The discounted retail payphone origination surcharge component of this call in pence |
| costSurchargeCallRecording | Retail Cost Call Recording Surcharge (Discounted) (p) | Text | The discounted retail call recording surcharge component of this call in pence |
| costCDRBasic | Basic Wholesale Cost (p) | Text | The basic wholesale cost of this call in pence, excluding any surcharges |
| costCDRAccessCharge | Wholesale Access Charge (p) | Text | The wholesale access charge component of this call in pence |
| costCDRSurchargeMobileOrigination | Wholesale Mobile Origination Surcharge (p) | Text | The wholesale mobile origination surcharge component of this call in pence |
| costCDRSurchargePayphoneOrigination | Wholesale Payphone Origination Surcharge (p) | Text | The wholesale payphone origination surcharge component of this call in pence |
| costCDRSurchargeCallRecording | Wholesale Cost Call Recording Surcharge (p) | Text | The wholesale call recording surcharge component of this call in pence |
| costCarrierBasic | Basic Calculated Wholesale Cost (p) | Text | The calculated basic wholesale cost of this call in pence, excluding any surcharges |
| costCarrierAccessCharge | Calculated Wholesale Access Charge (p) | Text | The calculated wholesale access charge component of this call in pence |
| costCarrierSurchargeMobileOrigination | Calculated Wholesale Mobile Origination Surcharge (p) | Text | The calculated wholesale mobile origination surcharge component of this call in pence |
| costCarrierSurchargePayphoneOrigination | Calculated Wholesale Payphone Origination Surcharge (p) | Text | The calculated wholesale payphone origination surcharge component of this call in pence |
| costCarrierSurchargeCallRecording | Calculated Wholesale Cost Call Recording Surcharge (p) | Text | The calculated wholesale call recording surcharge component of this call in pence |
| carrier | Carrier | Preset Value | The carrier responsible for this call |
| callCarrier | Call Carrier | Preset Value | The carrier that handled this specific call (may differ from the primary carrier) |
| CDRFileID | CDR File | Text | The ID of the CDR file that contained this call record |
| lineNumber | Line Number | Text | The line number in the CDR file where this call record appeared |
| carrierCallID | Carrier Call ID | Text | The call identifier provided by the carrier |
| callGroup | Call Group | Text | Optional call grouping label provided by the CDR loader |
| aLegID | Text | ID of the A-leg call when this is part of a multi-leg call | |
| id | Call ID | Text | The unique identifier for this call record |
| tariffTypeUsed | Call Type | Preset Value | The call type used for billing |