Jabber Multiline when controlling desk phone

Jabber Multiline when controlling desk phone with multiple lines

Hey we are loving Jabber multi-line but we use jabber to control our desk phones with multiple lines which is currently not supported (it can only control the first line on a desk phone). We need jabber multi-line to work when in desk phone control mode. Ideally it should work exactly like multi-line for jabber in soft phone mode, with the ability to control up to 8 lines on a desk phone. Is this feature already in the pipeline?