Different Assist Pipelines from a single VoIP phone

Calling from Asterisk, it would be great to set up multiple HA VoIP integrations on different ports. Each IP:Port combo could serve a different assist pipeline. This would enable those of us using VoIP phones via Asterisk to assign a unique extension to each port.

Isnt it already setup to do this? Just add another voip integration and change the port on it, then set it to different pipeline. Or am i missing something