Call progress tone generation in a communication system

Details Call progress tone generation in a communication system Call progress tone generation in a communication system

2007-04-10

2007-04-10

Bui, Bing Q. (Department: 2614)

Telephonic communications

Centralized switching system

With generating of call associated substation signal

C379S165000, C379S221080, C379S353000

Reexamination Certificate

active

11343722

ABSTRACT:
In a communication system, call tones are individually associated with call messages. The communication system comprises a wireless communication system and a wireless user device. The wireless user device transfers a call tone request to the wireless communication system over a wireless link. The wireless communication system transfers one of the call tones to the wireless user device over the wireless link in response to the call tone request. The wireless communication system processes signaling for a call to select one of the call messages associated with the one call tone. The wireless communication system transfers the one call message to the wireless user device over the wireless link. The wireless user device processes the one call message to select the one call tone and audibly plays the one call tone.

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patent: 5436964 (1995-07-01), Halligan
patent: 5473630 (1995-12-01), Penzias et al.
patent: 5818921 (1998-10-01), Vander Meiden et al.
patent: 5937035 (1999-08-01), Andruska et al.

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