MT#8367 Specify exact table for status to avoid ambiguity

(cherry picked from commit f5fbb6347dde3b9c394a9e557ee52098d554e9d3)
MT#8367 Remove potentially ambiguous voip_subscribers.status reference

Now DBIx uses subqueries for sequential searches so no ambiguity
is present now.

(cherry picked from commit b59e7bb3dff3c6697c1e54036add1c70fa82cbc3)