AT&T® ISDN Prime Service
AT&T® ISDN Prime Service lets you consolidate multiple voice and data services onto a single line terminating in your PBX or host computer. ISDN Prime Service simplifies your access to a variety of applications, including LAN-to-LAN connectivity and video conferencing.
ISDN Prime Service carries multiple voice, WATS, 800 Service, circuit-switched data, and packet-switched data calls on a single line at speeds of up to 64 kilobits per second (Kbps). And, because one ISDN trunk card can do the work of two separate digital trunk cards—one each for voice and data—ISDN Prime Service saves you precious PBX station capacity.
You get...
More capacity—ISDN Prime Service increases PBX station capacity by allowing a single ISDN trunk card to carry incoming and outgoing voice and data.
Flexibility—ISDN Prime Service lets you add features and accommodate high-speed data transfer with fewer lines.
Investment Protection—ISDN Prime Service maximizes your investment by allowing you to use all of your existing PBX station equipment.
Line Features—ISDN Prime Service offers you advanced features, such as Call by Call and Caller ID, at no extra charge.
Reduced Features—ISDN Prime Service carries multiple services—data, voice, and video—on a single path, cutting maintenance expenses and the risk of downtime.
It's good for...
LAN interconnection
Consolidation of network facilities
Video conferencing
Private line backup for disaster recovery
Remote terminal access
PC-to-host networking
Team engineering and design
How it Works
In AT&T's Network
Each ISDN Prime Service connection is made up of 23 circuit-switched voice/data B channels and one signaling data D channel, all operating at 64 Kbps. AT&T's circuit-switched network carries digitized voice, data, or image from the B channels, while their SS7 network carries signaling data from the D channel. ISDN software allows the line to carry as many simultaneous incoming and outgoing calls as needed.
At Your Premises
At your premises, ISDN Prime Service can terminate at a PBX equipped with ISDN Primary Rate Interface (PRI) software, a DS1 card, a CSU/DSU, and D-channel capability. Or ISDN Prime Service can terminate at a multiplexer equipped with PRI software and a CSU/DSU.
Pricing/Delivery
Availability, pricing, and options vary depending on your location. Contact ValueComm to find out how you can benefit from ISDN-Prime Service today.