On Sat, 17 Jan 2015 16:06:25 -0800, Badbiosvictim
Yes. I have a $80 a year plan with page plus cellular on my older Droid 3 phone.
I don't believe you can use utilize that number on your Droid 4 'PDA' with Textsecure. If it was a GSM phone maybe you could temporarily swap the active SIM card into the Droid 4 just to register the phone number with Textsecure. Then go back to Wifi for Textsecure comms, however this would require Google Services Framework. Are you trying to pull all this off without using a Google account? Current versions of Textsecure require the GSF to communicate over IP (as opposed to SMS). GSF is only obtainable via the Google Play store to the best of my knowledge. If someone knows of a way to install a current version of the Google Service Framework, without using the Google Play app, I'd be interested to know. Otherwise you're stuck using older versions of Textsecure that support SMS, but again I'm pretty sure that requires an active cellular plan with SMS capable telephone number.