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Gateways in sipXecs 4.0: Part 1

Aug 26, 2009, 06:32 (0 Talkback[s])
(Other stories by Michael W. Picher)


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"Gateways provide the connectivity required to reach other systems. These systems can be other sipXecs PBX's, traditional phone lines, or Internet Telephony Service Providers (ITSPs).Connecting the IP phone system to the outside world is one of the most difficult tasks in making the phone system work. If the network infrastructure is configured properly for quality of service, the connection to the outside world can most likely be the source of any call quality problems.

"Traditional analog Plain Old Telephone Service (POTS) lines are the largest source of frustration. If you can avoid them by utilizing a digital type of service or an ITSP, by all means take that avenue. For those not so lucky, you'll learn more about them then you ever thought you needed to. Typically, volume levels, line disconnect, and echo are the most common problems. Most gateways will have some advanced settings for dealing with these issues but they are different for every manufacturer. Adding gateways

"There are three types of gateways that can be configured to work in sipXecs; managed, unmanaged, and SIP Trunks. A managed gateway is a hardware device that connects to a traditional phone line. sipXecs knows how to generate configuration files (plug and play) for it. An unmanaged gateway is either a hardware device for which sipXecs doesn't know how to generate configuration files, or it may be another SIP PBX. A SIP Trunk is a connection to an ITSP."

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