PBX

• AT&T Definity: (provided by m.r.lundberg )

  50- 1,200	( 2,400 max.) stations	20,000 busy hour calls	(6/s)
  800-10,000	(20,000 max.) stations:	100,000 busy hour calls	(28/s)

  (1/3 internal, 1/3 outgoing, 1/3 incoming)

  200 line system: $120,000 ($600), with stations, but no wiring; average business use: 10 minutes/hour (6 CCS)

• PBX features
• New Options to Upgrade Old PBXs

  The average price per line in a PBX hit $567 in the United States last year [1996], and for systems with fewer than 100 lines, the average was $692, according to the Multimedia Telecommunications Association in Washington.

  A system supporting 50 users and eight simultaneous calls would cost about $10,000, said Roger Cockram, vice president of London-based Wilco.

  The CygNet solution from Cygnus Technology Ltd. provides more connections, connecting to the outside world via T1, or 1.544-megabit-per-second circuits, Basic Rate Interface and Primary Rate Interface ISDN, and frame-relay. It can also connect to computers using TCP/IP and a PBX through analog lines. Customers of the Fredericton, New Brunswick-based Cygnus might spend as much on Cygnus as they would on an upgrade, but they receive more functionality, said Glenn Smith, president of the systems integrator and developer.

  Mitel SX-200 ML (80 stations): about $350-400 per line
• Voice Logic, 4 outside lines, 12 extensions, with voice mail, costs $1099. (1/2000)

Siemens Hicom 300 PBX