Can I change my phone number while outgoing?

Question

mobile connection

Good afternoon, there are two SIM cards, both are issued to me, all my friends know the MTS number, now it will be possible to use only the MEGAFON SIM card (about a month, then I will use MTS again). All incoming redirected from MTS to MEGAFON. Is it possible to display the MTS number for outgoing calls from MEGAFON?

Answer 1

No, it seems like only when sending SMS you can implement this

Answer 2

Well, only if you raise your voip. Some kind of server :)