The package has a debian/watch file, but the last attempt
to use it for checking for newer upstream versions failed with
an error:
In debian/watch no matching files for watch line https://android.googlesource.com/platform/external/nist-sip/+refs [\w\/]+\+archive\/android-([0-9\.]+)_r(\d+|\d+\.\d+|\w)(\.tar\.gz) debian uupdate