tree 2a6162c08e77c0ea2c3a9e89b03a2a1a21845eb1
parent 7d4a354fd572ac0dc01f9b815a9e0af2d127bc5b
author pkanwar <pkanwar@google.com> 1478491905 -0800
committer pkanwar <pkanwar@google.com> 1493079839 -0700

Provide an API to make USSD calls and read the responses.

Test: will be added in a subsequent CL.
Bug: 30973910
Change-Id: Ibf622e154f3f987be547f4f85e15891d4e382118