Hello Everyone,

We are looking to setup an interconnection with a local ILEC. Basically we will be asking them for multiple DS3s muxed into a single STS-1/OC3 connection. We would then put our media gateway at the end of that connection. After demultiplexing, we would translate the signaling to SIP, throw an IP stack on top, and provide customers with a hosted SIP PRI solution.

My questions are:

* Is that typically how such interconnects are carried out? At a general level of course...
* Where does SS7 fit in this picture if anywhere
* Can tie trunks be used to connect the separate connections together. If so, do that mean we can share channels (i.e., DS0s) between the different POPs.
* Is this the best way to interconnect, and how does it differ compared to A-Links (ISUP Trunks)

What we are trying to accomplish is the following:

CO<------------>Our Network Core<---------> Internet (SIP PRIs)
ISDN over SONET

I have more questions, and can explain in more detail what we are trying to do however, will hold them back for the sake for brevity.

Kind Regards,

Mike.