Some years ago I had to work with text encoded with 3GPP TS 23.038 [1], which is a 7bit packed encoding with a few quirks. It wasn&#x27;t particularly fun.<p>[1] <a href="https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;GSM_03.38" rel="nofollow">https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;GSM_03.38</a>