Linksys SPA-841 User Guide - Page 68

PCB PR PS PSQM PSTN NAT OOB REQT RESP RSC RTP RTT SAS SDP SDRAM sec SIP SLIC SP SPA SSL TFTP TCP UA uC UDP URL VM VMWI VQ WAN XML Printed Circuit Board Polarity Reversal Provisioning Server Perceptual Speech Quality Measurement (1-5, the lower the better) Public Switched Telephone Network Network Address Translation Out-of-band (SIP) Request Message (SIP) Response Message (SIP) Response Status Code, such as 404, 302, 600 Real Time Protocol Round Trip Time Streaming Audio Server Session Description Protocol Synchronous DRAM seconds Session Initiation Protocol Subscriber Line Interface Circuit Service Provider Sipura IP Telephone Secure Socket Layer Trivial File Transfer Protocol Transmission Control Protocol User Agent Micro-controller User Datagram Protocol Uniform Resource Locator Voice Mail Visual Message Waiting Indication/Indicator Voice Quality Wide Area Network Extensible Markup Language 1.1. • • • • Glossary ACD (Automatic Call Distribution): A switching system designed to allocate incoming calls to certain positions or agents in the order received and to hold calls not ready to be handled (often with a recorded announcement). Area Code: A 3-digit code used in North America to identify a specific geographic telephone location. The first digit can be any number between 2 and 9. The second and third digits can be any number. Billing Increment: The division by which the call is rounded. In the field it is common to see fullminute billing on the local invoice while 6-second rounding is the choice of most long-distance providers that bill their customers directly. Blocked Calls: Caused by an insufficient network facility that does not have enough lines to allow calls to reach a given destination. May also pertain to a call from an originating number that is blocked by the receiving telephone number. Bundled Service: Offering various services as a complete package. Call Completion: The point at which a dialed number is answered. Call Termination: The point at which a call is disconnected. CDR (Call Detail Records): A software program attached to a VoIP/telephone system that records information about the telephone number's activity. © 2003 - 2005 Sipura Technology, Inc Proprietary (See Copyright Notice on Page 2) 68