I am actually working on and finalizing a marketplace app that will allow you to send and receive SMS/MMS from dialpad inside GHL both on the desktop version and mobile app. Also pulls in inbound/outbound call logs and voicemails. Sadly no calling functionality as GHL has that locked down, but its nice for SMS/MMS functionality. Will be available for sub accounts.

Dialpad is the one integration standing in the way of my clients taking their process / system to a point that they would never have thought possible before GHL. Please make this happen!