[Freeswitch-users] Adding openzap channels to a call group or the functional equivalent.

I'm trying to dial 1000 AND some analog extensions on inbound calls. Essentially, I need to add analog extensions to a call group, or the functional equivalent. To put it another way, I'm migrating from asterisk, and I need to know how to dial(sip/1000&openzap/1/1). This is not in the book, nor is there any documentation that I've been able to find that achieves this very basic hybrid PBX functionality. Thanks in advance.