H - Electricity – 04 – M
Patent
H - Electricity
04
M
H04M 3/50 (2006.01) H04M 3/436 (2006.01) H04M 3/533 (2006.01)
Patent
CA 2104799
A telephone caller is permitted to retrieve his call from the central voice services feature of an unavailable called party, and resume the Ball progress by substituting a calling feature of his own. In a telephone system including a telephone switching facility and a voice features server, provision is made for enabling a calling party to invoke an appropriate calling party feature such as a ring back feature or an override feature, and thereby subsequently achieve a real time conversation with the called party instead of simply being able to leave a voice message for the called party.
Brennan Paul Michael
Florence Lloyd Malcolm
Measures Jeffrey Martin
Nortel Networks Limited
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