[SIPForum-discussion] How is SIP billed ?

Yevgen Krapiva ykrapiva at gmail.com
Thu Apr 23 16:32:09 UTC 2009

Internal call billling leads to Lawfull Interception possibility.
In some countries, especially in mine (Ukraine), vendors MUST provide
possibility to sniff subscribers voice or data traffic.

2009/4/23, Pat Borka <pat.borka at gmail.com>:
> 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.
> Pat
> 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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> --
> Sent from my mobile device

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