I currently do texting through my pbx, freepbx/asterisk.  I want to integrate this into my crm.  But I still want to have a mobile app for texting too, I have this today.  I would probably port my numbers over to twilio or similar for this.  I wish there was a freepbx cti integration.

I've seen some apps like smooth that have a mobile app, but it doesn't look like I could use my own account.

Sms magic may be an option, but I've heard mixed reviews.

Any other options I should consider?