для Cisco Cisco IOS Software Release 12.2(11)T

AAA—authentication, authorization, and accounting.

DNIS—Dialed Number Identification Service. Telephone service that identifies for the receiver of a call 
the number that the caller dialed.

DSP—Digital Signal Processor.

NAS—network access server. Cisco platform or collection of platforms, such as an AccessPath system, 
that interfaces between the packet world (for example, the Internet) and the circuit world (for example, 
the PSTN). 

PPP—Point-to-Point Protocol. Successor to SLIP that provides router-to-router and host-to-network 
connections over synchronous and asynchronous circuits. Whereas SLIP was designed to work with IP, 
PPP was designed to work with several network layer protocols, such as IP, IPX, and ARA. PPP also has 
built-in security mechanisms, such as CHAP and PAP. PPP relies on two protocols, LCP and NCP. 

PSTN—Public Switched Telephone Network. General term referring to the variety of telephone 
networks and services in place worldwide. Sometimes called POTS.

RPM—Resource Pool Manager.

RPMS—Resource Pool Manager Server.

SLIP—Serial Line Internet Protocol. Standard protocol for point-to-point serial connections using a 
variation of TCP/IP. Predecessor of PPP.

VPDN—virtual private dialup network. 

For a list of other internetworking terms, see the Internetworking Terms and Acronyms document 
available on the Documentation CD-ROM and Cisco.com at the following URL: 
http://www.cisco.com/univercd/cc/td/doc/cisintwk/ita/index.htm.