Glossary of terms
| Term | Definition |
A |
|
| ALID | AccessLineId. Identifier of an existing physical line (WLR/PSTN, SOGEA, or MPF) at a premise. |
| AMSR | Anonymised Mobile Subscription Reference. This is a unique identifier used by EE that replaces an individual’s mobile phone number and that may be used to distinguish one individual from another. |
| API | Application Programming Interface |
| APN | Access Point Network |
| Appointment ID | Identifies a reserved engineer appointment slot. |
| ATP | Account Takeover Protection |
B |
|
| BAN | Billing Account Number |
| Billing account ID | Test billing account reference used when submitting an order. |
C |
|
| CRM | Customer Relationship Management |
| CTN | Customer Telephone Number |
| CUG ID | Closed User Group ID. Identifies the customer's group for product qualification and ordering. |
D |
|
| District code | Exchange district code tied to a postcode/NAD. |
| DUNSID | A business identifier query parameter for the line availability (MLPA) call. Optional, and not validated when present. |
E |
|
| e-code | Product offering ID. Identifies a specific sellable product or add-on, either as a name string or a BT-assigned e-code. |
| eKYC | Electronic Know Your Customer |
| eSIM | Embedded SIM |
| externalId | The caller's own order reference string, chosen by the caller. |
F |
|
G |
|
| Gold qualifier | A data-quality flag on address lookup entries. Gold addresses are fully validated and have network routing information. Silver/Bronze addresses lack this routing information and typically cannot be used for ordering without further action. |
H |
|
| HAC | Header Enrichment Code |
| HBB | Home Broadband |
| HLR | Home Location Register |
| HSS | Home Subscriber Server (or Service) |
| HTTP | Hyper Text Transfer Protocol |
| HTTPS | Hyper Text Transfer Protocol Secure |
I |
|
| IMEI | International Mobile Equipment Identity number |
| IMSI | International Mobile Subscriber Identifier |
J |
|
K |
|
| KSU | Keep Status Updated. BT's fulfillment-milestone codes delivered via asynchronous order status updates. |
| KYC | Know Your Customer |
L |
|
M |
|
| MCC | Mobile Country Codes |
| MCN | Mobile Contact Number - provided for use in relation to a user's EEID |
| MIG | Mobile Internet Gateway |
| MLPA | Line Availability check. Looks up existing working/stopped lines at a premise. |
| MMS | Multimedia Messaging Service |
| MNC | Mobile Network Codes |
| MNO | Mobile Network Operator |
| MSISDN | Mobile Subscriber Integrated Services Digital Network Number |
| MVNO | Mobile Virtual Network Operator |
N |
|
| NAD key | Network Address Database Key. Openreach's unique identifier for a physical premise, used to locate a line plant. These keys start with "A", "S", or "B". |
O |
|
| ONT | Optical Network Terminal. FTTP-specific equipment installed at a premise. |
| OTP | One Time Pin - used to verify that a user has access to a mobile number |
| OUK | Orange UK |
P |
|
| PAYG | Pay As You Go |
| PAYM | Pay Monthly |
| PCR | Pseudonymous Customer Reference. This is a unique identifier that replaces an individual’s mobile phone number and that may be used to distinguish one individual from another. |
| POQ | Product Offering Qualification. Checks which products are available to order at a given premise. |
Q |
|
R |
|
| RAN | Radio Access Network |
| RCS | Rich Communication Services (RCS) is a communication protocol between mobile-telephone carriers and between phone and carrier. |
| ReST | Representational State Transfer |
| ROBT key | The matching site/delivery address identifier for the same premise, from a different BT address source than the NAD. RoBT addresses are identified by keys prefixed with "R" or "X." |
S |
|
| SIM | Subscriber Identification Module |
| SLR | Service Level Request |
| SMS | Short Messaging Service |
| SOA | Service-Oriented Architecture |
| SOAP | Simple Object Access Protocol |
| SPG | Secure Partner Gateway |
| SQL | Structured Query Language |
| SSO | Single Sign-On |
| SwA | SOAP with Attachment |
T |
|
| THBS | Torry Harris Business Systems |
| TMUK | T-Mobile UK |
| TPS | Transactions per second |
U |
|
| UAT | User Acceptance Test |
| UPRN | Unique Property Reference Number, a national UK addressing standard identifier. |
| URI | Uniform Resource Identifiers (ReST) |
| URL | Uniform Resource Locator |
V |
|
| VPN | Virtual Private Network |
W |
|
X |
|