[OpenSIPS-Users] Detecting the responder by opensips Server

[Engineer voip]

Hello All,
I want to know if opensips is capable to detect the responder of a mobile
phone?
if yes, what can i do that!
** I explain what i want to do:*
 I want to Opensips calls a phone number, but if the responder of this
phone is active, the opensips detect it and transfers the call to another
phone number.

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Best Regards.
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