Dhiraagu - Fixed ISDN

ISDN (Integrated Services Digital Network) is an advanced communications service providing a fully digital connection between the customer and the telephone exchange. Dhiraagu offers ISDN in the following formats:

ISDN-2	Two 64kbps channels


ISDN-30	Thirty 64kbps channels (only available on islands with residential telephone service)



ISDN-8 Plus	A minimum of eight 64kbps channels; can be increased up to 30 (only available on islands with no residential telephone service).

ISDN service is available in greater Male´and on islands with telephone number ranges 660XXXX, 662XXXX, 650XXXX, 652XXXX, 664XXXX, 665XXXX, 666XXXX, 668XXXX and 670XXXX.

ISDN can be used for:

- Making ordinary telephone calls
- Sending and receiving laser print quality faxes at high speed (Group 4 fax)
- High speed Internet access up to 128kbps
- High speed data communications (file transfers, linking LANs, remote access)
- Video conferencing and video telephony

Up to 8 different equipment can be connected to an ISDN-2 line and any 2 can be used simultaneously (e.g. make two simultaneous phone calls or use the Internet while talking on the phone). ISDN-30 and ISDN-8 Plus are intended to be connected to PABX systems.

Customer Equipment

ISDN is a digital service and only ISDN compatible equipment can be connected directly to an ISDN line.

Customers can use their existing analogue phones, fax machines and modems with ISDN using a special device called a Terminal Adapter but they will not get the speed advantages of ISDN.



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