O'Reilly logo

Essential Guide to Telecommunications, The, Third Edition by Annabel Z. Dodd

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Add-On Peripherals for Key Systems, Pbxs and Centrex Systems

Sales of basic on-site telephone systems are extremely competitive and margins are slim. Discounts of up to 40% are common on purchases. Slim margins, the need to raise money and slow growth are among the reasons that Lucent divested itself of Avaya, its PBX and customer premise equipment (CPE) division. Vendors of telephone systems and CPE derive much of their profits in the following areas:

  • Maintenance contracts on telephone systems

  • Moves, adds and changes of installed-base telephone equipment

  • Upgrades to the hardware and software of existing telephone systems

  • Feature telephones with built-in speakerphones, feature buttons and liquid crystal displays

  • Wireless telephones for PBX and key ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required