These are the listings closest to 51 Voice Call in what they say they do. Comparable, not endorsed: the ranking is the catalog's, and the judgement is yours.
DialogDescribes nearly the same job, smaller audience · Fewer sites but more permissions than the original4 users (last published figure)Compare side by side
TeleVoIPsDescribes nearly the same job, smaller audience · Wider access than the original209 usersCompare side by side
Comparable listings are pre-computed from the meaning of each store listing, then shown with the audience and rating from our latest pass over the store. Access compares where each listing can run (every site, how many site patterns) and how many browser permissions it declares, against the extension it would replace. Narrower is not a verdict on safety: compare what each needs for the job.