Wholesale SIP Trunking - Acronyms

1+NXXNXXXXXX - N = Any number between 2 - 9 X = Any number between 0 - 9

ACD - Automatic Call Distribution

ACD - Average Call Duration

ANI - Automatic Number Identification (Calling Number) Pronounced: annie API - Application Programming Interface ASR - Answer Seizure Ratio (Call Completion %)

A2P – Application to Person

B2BUA - Back to Back User Agent (SBC set to pass through traffic invisibly to each side of the call)

BTN - Billing Telephone Number

CDR - Call Detail Report

CLEC - Competitive Local Exchange Carrier Pronounced: see leck

CNAM - Caller ID Pronounced: see nam

COB - Copy of Bill and or Close of Business

CPaaS – Communications Platform as a Service (Programmable Telco)

CSR - Customer Service Record

DID - Direct Inward Dialing Pronounced: D-I-D not did DNIS - Dialed Number Identification System (Called Number) Pronounced: dee nis DSP - Digital Signal Processing

DTMF - Dual Tone Multi-Frequency

EPG – Endpoint Group

FOC - Firm Order Commit Pronounced: fock (sounds like clock)

IAX - Inter-Asterix Exchange (Protocol) (like SIP, this is a protocol that asterisk uses to initiate calls)

ISP - Internet Service Provider

ITSP - Internet Telephony Service Provider

IVR - Interactive Voice Response

JEOP - Jeopardy (not so much an acronym as a shortening of a word; means a number port is in jeopardy)

LATA - Local Access and Transport Area Pronounced: lat a

LEC - Local Exchange Carrier

LNP - Local Number Porting

LOA - Letter of Authorization

LRN - Local Routing Number

LSP - Local Service Provider

LSR - Local Service Request

MMS – Multimedia Messaging Service

MRC – Monthly Recurring Charge

NPA - Numbering Plan Area (area code)

NXX - Number Exchange

OCN - Operating Company Number

ONSP - Old Network Service Provider

PBX – Private Branch Exchange

PSTN - Public Switched Telephone Network

P2P – Peer to Peer

RespOrg - Responsible Organization

REST API – Representational State Transfer Application Programming Interface

RTCP - Real Time Control Protocol

RTP - Real-Time Transport Protocol (media packets)

STSP - Real Time Streaming Protocol

SBC - Session Border Control

SIP - Session Initiated Protocol Pronounced: sip (like sipping a straw)

SLID - Subscriber Line Identifier (Telephony; Last 4 digits of number)

SMS – Short Message Service

SOAP API – Simple Object Access Protocol Application Programming Interface SPID - Service Profile Identifier

T.38 - Standard for sending Fax over IP Pronounced: tee thirty-eight TN - Telephone Number

UBR - Unsatisfactory Business Relationship

UCaaS – Unified communications as a service

ULC – Underlying Carrier (Another way for mentioning ULEC)

ULEC - Underlying Exchange Carrier Pronounced: you leck

VoIP - Voice Over Internet Protocol

XML – Extensible Markup Language