Virtual Conferencing Glossary

N

Narrowband - A low-capacity communications circuit/path. It usually implies a speed of 56Kbps or less.

Network - A group of stations (computers, telephones, or other devices) connected by communications facilities for ex-changing information. Connection can be permanent, via cable, or temporary, through telephone or other communications links. The transmission medium can be physical (i.e. fiber optic cable) or wireless (i.e. satel-lite).

NT1 - Network Termination type 1. The NT-1 is a device which converts the two-wire line (or "U" interface) coming from your telephone company into a 4-wire line (or "S/T" interface). The NT- 1 is physically connected be-tween the ISDN board of your videoconferencing system and your ISDN phone line. The NT- 1 supports network maintenance functions such as loop testing. Check to see if your ISDN equipment requires an ex-ternal NT-1 to operate.