ABI - Application Binary InterfaceA binary interface for applications to utilize external and/or underlying software or hardware. ... View more
Abis InterfaceThe interface within the GSM architecture, between the BTS (Base Transceiver Station) and BSC (Base Station Controller). This interface is usually con... View more
ABM - Asynchronous Balanced ModeThis mode refers to the data link layer and identifies that a link has been established for sending information. The opposite state is ADM (Asynchrono... View more
ABMF - Account Balance Management FunctionThe ABMF is a logical element of the 3GPP OCS (Online Charging System) which is designed to track the remaining credit a subscriber has left on their... View more
ABNF - Augmented Backus-Naur FormABNF - Augmented Backus-Naur Form A standard programming syntax used to express the command messages in distributed programming.... View more
ABR - Area Border RouterA router that attaches to multiple areas of an OSPF based network. Area border routers run multiple copies of the basic algorithm, one copy for each a... View more
ABR - Available Bit RateQoS (Quality of Service) class defined by the ATM (Asynchronous Transfer Mode) Forum for ATM networks. ABR is used for connections that do not require... View more
AC - Access CategoryThe term Access Category is used in wireless networks supporting the IEEE 802.11e Quality of Service standard. There are four defined Access Categorie... View more
AC - Access Class (C0 to C15)AC - Access Class (C0 to C15) In GSM , the Access Class indicates the type of access that is permitted. This class is broadcasted over the air interfa... View more
AC - Attachment CircuitThe physical or virtual circuit attaching a CE to a PE. An AC can be a Frame Relay DLCI , an ATM VPI / VCI , an Ethernet port, a VLAN , a HDLC , a con... View more
Access CodeIn Bluetooth, each baseband packet starts with an Access code, which can be one of 3 types: CAC (Channel Access Code), DAC (Device Access Code) and IA... View more
Access Control MethodThis is the main distinguishing feature between different LAN (Local Area Network) technologies. It regulates each workstation's physical access to th... View more
Access delayThe Access delay is the value of elapsed time between an access request and the successful access of the network. ... View more
Access ProtocolA set of specific procedures that enable a user to obtain services from a telephone company or network. ... View more
Access ServerCommunications processor that connects asynchronous devices to a LAN (Local Area Network) or WAN (Wide Area Network) through network and terminal emul... View more
Access Stratum SDU - Access Stratum SDU (Service Data Unit)Unit of data transferred over the access stratum SAP (Service Access Point) in the Core Network or in the User Equipment. ... View more
ACCH - Associated Control ChannelThe GSM signalling channels associated with a user's traffic channel or dedicated signalling channel. Two ACCH are defined for GSM Circuit Switched op... View more
Account CodeA numeric code that identifies the calling party for internal billing or accounting purposes. Account codes are often used by service companies such a... View more
AccountingAccounting is the process of apportioning charges between the Home Environment, Serving Network and User. ... View more
AccuracyThe Accuracy indicates the performance criterion that describes the degree of correctness with which a function is performed. ... View more
