> -----Original Message-----
> From: Takumi Ohba [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, April 12, 2001 6:44 AM
> To: [EMAIL PROTECTED]
> Subject: [Sip-implementors] billing information
>
>
> Hi,
>
> How can SIP carry billing information, such as
> origination/destination area
> information, origination/transit/destination network provider
> identification, or charging rate?
In networks, you bill for services. Thus, you need to be able to obtain
information from your systems (gateways and proxies) on the services
provided. For VoIP gateway services, the aspects of the service provided
include dialed number, calling party number, minutes for the call, packets
sent, etc. All of this information is known to the gateways. Some of it,
such as the caller and callee identity, are carried in the SIP messages.
Call duration is determined by the gateway. Information such as "charging
rate" is not part of the service provided. This information is known to the
provider, and would be used to generate the final bill, based on the call
detail information.
As a result, there are no extra headers or fields defined to carry billing
information for SIP. Headers have been defined to carry authorization tokens
for calls. See:
http://search.ietf.org/internet-drafts/draft-johnston-sip-osp-token-01.txt
but that is not billing information.
-Jonathan R.
---
Jonathan D. Rosenberg 72 Eagle Rock Ave.
Chief Scientist First Floor
dynamicsoft East Hanover, NJ 07936
[EMAIL PROTECTED] FAX: (973) 952-5050
http://www.jdrosen.net PHONE: (973) 952-5000
http://www.dynamicsoft.com
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