Hi Dale,

Thank you for your quick response.
I am implementing a SIPB2B which acts as a session controller, where PSTN or
other network calls also may come to this session controller.
Inorder to authenticate the caller and callee and also for other billing
required charging information, we need to determine whether the call is MO
(mobile originating) or MT (mobile terminating).

With Thanks,
Kiran

On Wed, Oct 12, 2011 at 1:36 AM, Worley, Dale R (Dale) <[email protected]>wrote:

> > From: kiran kumar [[email protected]]
> >
> > Can any one help me, how could I distinguish between MO and MT calls (In
> > pure SIP networks).
>
> Can you explain the difference between "MO" and "MT" calls?  (And why
> it is important to distinguish between them.)
>
> Dale
>
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