07787879 is referenced by 32 patents and cites 23 patents.

A user uses a wireless communication device to engage in a communication session over a packet-switched network. The communication session is one of a plurality of different session types, e.g., a push-to-talk (PTT) session or a Web browsing session. The user is identified in the communication session by a user identifier that is dependent on the session type. The user identifier used in a particular communication session is included in a usage record generated for that communications session. A billing system determines the session type from the user identifier in the usage record. Based on this session type, the billing system selects a billing formula to calculate a charge to the user for the communication session.

Title
Method and system with user identifiers that indicate session type
Application Number
12/212239
Publication Number
7787879 (B1)
Application Date
September 17, 2008
Publication Date
August 31, 2010
Inventor
John David Ehrsam
Prairie Village
KS, US
Bill A Hinds
Roeland Park
KS, US
Jeffrey F Philips
Lee's Summit
MO, US
Assignee
Sprint Spectrum
KS, US
IPC
H04Q 7/20
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