At scale? I’m not so sure!
On 22/03/2016, 21:38, "uknof on behalf of David Reader" <[email protected] on behalf of [email protected]> wrote: > >I’m quite certain there are more cost-efficient ways to put an audible >tone on a bunch of lines than renting a legacy POTS service… > >…technically anyway. It being practical or permitted are likely where >the problems would lie. It’s not something I ever had sufficient >motivation or tuits to look into. > >d. >
