Instruction manual

IP 700 Series Phone Administrator Guide Appendix C. Glossary
6AOSAG0001-31A Copyright © 2011 ADTRAN, Inc. 85
SIP server: Session Internet Protocol server. A SIP server functions as registrar and proxy servers,
allowing the SIP communication process between devices.
Soft keys: The keys located across the bottom of the LCD screen that are associated with functions
displayed on the screen. As menus and screens change, the functions correlated with each soft key also
change.
Speakerphone: The internal part of the phone that transmits and receives audio signals through a speaker,
allowing for phone communication without the use of a handset or headset.
Speed: The rate of information transfer between the IP phone and the network.
SPRE: Special Prefix codes are numbers dialed to use certain features on the phone.
STUN server: Simple Traversal of UDP (User Datagram Protocol) through NATs (Network Address
Translators) server. A server providing network information to a client to establish UDP communication
between the two, both which reside
behind NAT routers.
Web GUI: Web Graphical User Interface. A user-friendly method of interacting with the IP phone
through a Web interface.