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Method and system for processing an incoming call

  • US 6,304,649 B1
  • Filed: 12/19/1997
  • Issued: 10/16/2001
  • Est. Priority Date: 09/19/1997
  • Status: Expired due to Term
First Claim
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1. A method of processing an incoming call without the use of special directory number to one of a plurality of lines where each line terminates on a single switch, the method comprising the steps of:

  • (a) provisioning the plurality of lines terminating on the switch as a single group;

    (b) in response to an incoming call to any one line of said group, determining at said switch if group alerting has been provisioned against said one line;

    (c) in response to group alerting being provisioned against said one line, said switch alerting said one line along with each other line of said group; and

    said step (c) comprising the steps of;

    (i) alerting said one line with a first alerting signal and alerting each other line of said group with a second alerting signal which is distinguishable from the first alerting signal;

    (ii) determining that at least one of the lines is busy and subsequently applying a call waiting indication to said busy line; and

    (iii) determining that said busy line is a line other than said one line and applying a distinctive call waiting indication to said busy line;

    (d) in response to group alerting not being provisioned against said one line, said switch alerting only said one line.

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