Direct dialing-in method in a pabx

Telephonic communications – Plural exchange network or interconnection – Interexchange signalling

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

379 93, 379 94, 379210, 379211, 379231, 3701101, H04M 700, H04M 1100, H04M 342, H04J 312

Patent

active

052336484

ABSTRACT:
A direct dialing-in method in a PABX is disclosed. In this method, a called party number translation table storing a plurality of pairs of first and last addresses for defining address groups, each constituted of a predetermined number of serial numbers, and specified addresses set for all kinds of terminals, at each group, is prepared. A called party number is extracted from the called party number information element of a SET UP message from a central exchange in ISDN having received a direct dialing-in number. It is checked with the aid of the translation table which of the address groups includes the called party number. The called party number is converted into a relative address in an address group including the called party number. The kind of a terminal on a call side is judged from the bearer capability information element and the high layer compatibility information element of the SET UP message simultaneously with the determination of the relative address. A specified address corresponding to the kind of the terminal is read out from the called party number translation table, and the read-out, and the specified address is added to the relative address, to obtain the extension number of the terminal.

REFERENCES:
patent: 4958153 (1990-09-01), Murata et al.
patent: 5033079 (1991-07-01), Catron et al.
patent: 5099511 (1992-03-01), Matsumoto

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Direct dialing-in method in a pabx does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Direct dialing-in method in a pabx, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Direct dialing-in method in a pabx will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2278122

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.