SIP <-> Asterisk <-> MGCP Provider <-> MGCP-phones

Good day.

I have my asterisk 1.8 configured and operated. Sip-phones make calls and everything works fine. But now i get mgcp line to another provider. How can i organize configuration where my sip users can make and receive calls through mgcp-provider? I khow asterisk can act as mgcp-server. Is it possible to make asterisk <-> mgcp provider connection.

Thank you.