This standard provides interface compatibility specifications and technical requiremens for the interfacing of a Wireless Carrietor an Exchange Carrier @C)@ Interexchange Carrier (IC)@ International Carrier (INC)@ Consolidated W e r or any other er element. This standard provides technical requirements for an interface that interconnects a switching system in a wireless network with a switching system in the Public Switched Telephone Network (PSTNo)r a switching systemin an Inteagated Services Digital Network (ISDN). Within the ANSI accredited Telecommunications Industry Association (TIA) TR45 Network Reference Model@ these interfaces are denoatse dth e Ai and Di interfaces@ respectively. For the purposes of this standard@ these two interfaces are treated genericallya s a single interface defined conciseblyy a signaling protocol and by signaling information provided via that protocol. By ananging the interface specifications into a numbero f individual signaling protocols@ this standard provides the interconnecting network elements with a variety of compatible signaling methods to provide telecommunications services. The telecommunications services provided and@ therefore@ the speicnitfeicr face signaling protocols available at the interface@ are determined by business decisions@ mutual interface agreements and legal and regulatory requirements. These decisions@ agreements and requirements are beyond the scopoef this technical standard. The technical information provided in this specification complies with ANSI standard TZ.104 (see Section2 - References). Refert o this document for more details aboutth e technical requirements of the specified internetwork interfaces.