But some phone systems don't respond if the ringing voltage is too low. You might try Innomedia. We've had decent luck with them. On Thu, Mar 24, 2022 at 5:49 PM Carlos Alvarez <caalvarez at gmail.com> wrote:
Not sure on your reason for this, but I can tell you that I have a Grandstream connected to a 60s rotary phone and it rings just as strong as ever.
https://studio.youtube.com/video/r88JcZQE3B0/edit
On Thu, Mar 24, 2022 at 2:35 PM Mike Hammett <voiceops at ics-il.net> wrote:
I'm looking for ATAs that produce a 90-volt ring. My Zhone only does 40v and my Grandstream only does 52v. It looks like the Cisco SPA122 used to, but it's EOS.
----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com
Midwest Internet Exchange http://www.midwest-ix.com
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