On PSTN also there are mechanisms to charge based on bearer capability (module code 071 which captures info from Generic Base USI from ISUP signalling , as specified by BAF GR-1100-CORE) , So you can be charged more if you use more bandwidth. I think you should be charged more if you initiate a video session and less if you initiate a audio session for the same session duration. Also if you request specifically for higher QoS , then you should be charged extra for that? for example , if you have subscribed for a better QoS and your voice packets are routed over a expensive ATM backbone, then you should be charged more than a simple best effort call.
-----Original Message----- From: Vikram Varma [mailto:[EMAIL PROTECTED]] Sent: Thursday, December 13, 2001 6:47 PM To: 'Sayan Chowdhury '; 'Sip-Implementors ' Subject: RE: [Sip-implementors] SIP accounting I am not sure how a 3rd party would collect RTCP reports, given that the RTCP reports are sent end to end. To do this means that you actually have access to the end users. While RTCP reports will provide additional granularity, and like you said, provide feedback on the QoS, would it not be adequate to use the PSTN model, and charge for connection time? I dont usually get a lower rate for a line with static :). Vikram
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