Patent ID: 6031899
Filing Date: 2000-02-29
Classification: H04M,H04Q

Abstract:
A local switch for call type identification of a calling party to a called party, prior to a communication therebetween, via a selective distinctive ring pattern signal, from a plurality of distinctive ring pattern signals and in one-to-one correspondence with said call type identification, to said called party, said telecommunications system comprising:first message generator means for generating, upon receipt of a communication request from said calling party, a prompting message from said local switch to said calling party, said prompting message requesting a response from said calling party for the call type identification of said communication request from said calling party to said called party;message interpretation means for interpreting, upon receipt of said response, the call type identification entered by said calling party;second message generator means for generating, upon interpretation of said response, said selective distinctive ring pattern signal to said called party, said selective distinctive ring pattern signal being in one-to-one correspondence to said call type identification; andblocking means, upon interpretation of said response, to selectively block said communication between said calling party and said called party.