LI is local interconnect, it’s virtual Tandem product for carrier from Level 3.
You are planning on using this in some sort of wholesale/carrier type environment? Just making call back and forth is not a big deal but if you are going to hand them off to another machine, that makes a difference.
Unless you are a very large company LI is not intended to be a end user product.
I do have extensive experience with integrating Asterisk and L3.
If you are interested in engaging me to work on your project (this is outside the scope of what Sangoma tech support offers) you can send me a PM with your contact information. We have experienced OTTS trained experts on our staff that can assist with project type scopes such as this.
Thanks for reaching out.
Scott