SNTP
Simple Network Time Protocol. An adaptation of the Network Time Protocol
used to synchronize computer clocks in the internet.
SOHO
Small Office Home Office. The environment for which a virtual private
network (VPN) is administered.
SPD
Security Policy Database. Specifies the policies that determine the
disposition of all IP traffic inbound or outbound from a host or security
gateway IPsec implementation.
SPI
Security Parameter Index. An identifier for a Security Association, relative
to some security protocol. Each security protocol has its own “SPI-space”.
SRTCP
Secure Real-time Transport Control Protocol.
SRTP
Secure Real-time Transport Protocol.
system -specific
Specific to a particular type of call server. For example, Avaya
Communication Manager or SIP Enablement Services (SES).
System-
specific signaling
refers to messages specific to the signaling protocol used
by the system. For example, H.323 and/or CCMS messages used by CM
and IP Office, or SIP messages that possibly include system-specific
headers used by SES.
System-specific procedures
refers to procedures in
deskphone software that are specific to the call server with which the
software is to be used.
TCP/IP
Transmission Control Protocol/Internet Protocol, a network-layer protocol
used on LANs and internets.
TFTP
Trivial File Transfer Protocol, used to provide downloading of upgrade
scripts and application files to certain IP telephones.
TLS
Transport Layer Security, an enhancement of Secure Sockets Layer (SSL).
TLS is compatible with SSL 3.0 and allows for privacy and data integrity
between two communicating applications.
URI & URL
Uniform Resource Identifier and Uniform Resource Locator. Names for the
strings used to reference resources on the Internet. For example,
HTTP://..... URI is the newer term.
VPN
Virtual Private Network, a private network constructed across a public
network such as the Internet. A VPN can be made secure, even though the
network uses using existing Internet connections to carry data
communication. Security measures involve encrypting data before sending
data across the Internet and decrypting the data at the other end. To add
an additional level of security, you can encrypt the originating and receiving
network address.
Glossary
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VPN Setup Guide for 9600 Series IP Telephones
March 2015
