am 2230ef3c: (-s ours) Merge "DO NOT MERGE. Port "respond via SMS message" feature to new Telecomm. (2/4)" into lmp-preview-dev

* commit '2230ef3c871fb28a6c291bf8ccb9e40cca2ca3b4':
  DO NOT MERGE. Port "respond via SMS message" feature to new Telecomm. (2/4)