Essential terms of wholesale VoIP
ASR, ACD, CPS, CLI, DID, LNP, STIR/SHAKEN… All terms explained simply.
Ratio of answered calls to total attempted calls. Key quality indicator for termination.
Average call duration in seconds. Traffic quality indicator.
Caller number transmitted during a call. A valid and reliable CLI is essential for professional calls.
Number of simultaneous calls that can be established per second on a SIP trunk.
Geolocated phone number allowing calls to be routed directly to an extension or service.
Model allowing a customer to replace a platform's carrier (Twilio, Vonage…) with their own wholesale SIP provider.
SIP header for transmitting the validated caller identity. Used for caller ID presentation and compliance.
Contract defining service quality commitments: uptime, support response time, failover time.
US telephone security standards (adapted in Europe) to authenticate call origin and reduce spoofing.
Process allowing a subscriber to keep their phone number when changing operator.
Extension of RTP protocol adding encryption, authentication and integrity to VoIP call media streams.
Detailed call record: calling/called numbers, duration, cost, status, codec. Basis of SIP billing.
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