Business telephone systems ( 15 ) :

• General information on business phone systems

• Modem connection - Tips on how to connect the modem in all circumstances, very useful tips for business travelers   
   

• PBX systems

• Dialing for fewer dollars - You keep your company running by keeping tabs on a finely tuned array of high-tech equipment, but tucked away in an obscure closet is the one piece you may depend on most and probably know the least about: your phone system.   
• EE476 Final Project AT90LS8515 PBX (Private Branch Exchange) - A project documentation that describes construction of a 4 line telephone systems with full signaling and switching functions similar to those of the central office systems.   
• How a PBX works   
• How IP PBX works   
• Is Your PBX Ready for the Junk Heap? - So, what's the deal with VoIP? Should you believe the vendors and embrace it as the newest way for ISPs to increase revenues and for businesses to cut costs, or should you listen to the analysts who say it's still too soon to take the plunge? The answer probably has more to do with your situation than with the technology.   
• Network Prep and QoS Assurance - Yes, you should look at your network before installing an IP PBX. But the news is probably good. If not, here's a make-ready recipe, and some products to help.   
• On speaking terms: a network-based PBX lexicon   
• Pack up your PBX--VoIP is here - IP technology is increasingly becoming the standard for corporate voice communications.   
• PbxTech - Free Technical Forums and News for PBX Administrators   
• Voice&Data GoldBook - IP Is Future but Circuit Switch Stays   
• VoIP--do it right - VoIP can help your company save on telephone costs, leverage its existing network infrastructure, and add communications features that enhance productivity--assuming, of course, that it's done right. If you're planning to take the plunge and swap out your old PBX for a VoIP system, you need to keep your eye on what's critical--and know the pitfalls to avoid.   
   

• Telephone headsets

• Headset-Adapter for Cisco-IP-Phone - You can connect a standard PC-Headset to the Cisco IP-Phone. The necessary adaptor is described here.   
• Telephone Headgear - A compact, inexpensive and low component count telecom head- set can be constructed using two readily available transistors and a few other electronic components. . Since the circuit draws very little current, it is ideal for parallel operation with electronic telephone set   
• Telephone Headset FAQ's   

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