[SIPForum-discussion] How is SIP billed ?

Pat Borka pat.borka at gmail.com
Thu Apr 23 16:14:34 UTC 2009

If you are making a call internally why would you want to bill it? Not
to challenge the logic so much. I am more interested in the logic
behind internal billing.


On 4/23/09, Manish Aggarwal <maaggarwal at gmail.com> wrote:
>  Thats correct !!
> While there are well defined means to bill the "SIP trunk" calls, the SIP
> extension to extension calls cannot be billed with that much accuracy.
> May be thats the reason companies like Vonage, Viatalk, Sunrocket (already
> bankrupt)  etc, (which use SIP), take an annual charge, and not on a per
> call
> basis.
> -Manish
> On Wed, Apr 22, 2009 at 2:25 AM, Yevgen Krapiva <ykrapiva at gmail.com> wrote:
>> Hi.
>> Can you say me what methods are used to bill SIP phone calls ?
>> As I understand, to bill SIP you must ensure that all SIP signalling
>> passes some Proxy or B2BUA. This is impossible as I can always call
>> another caller directly, passing by proxy.
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