In Skype there is an 'echo call testing service'.
I want to check a set of POTS telephones and telephone microphone headsets.
Of course, I can call a friend and ask "how does this sound?" for all the permutations and combinations - but, having used the convenient Skype service, this question is whether a similar land-line POTS call-testing service exists for dialed phone numbers?
Q: Does a POTS "echo" call testing service even exist?
I call my answering machine, leave a test message, and then call back to play back the message. Same with VoIP voicemail. I also have some "permanent" voicemail messages with test tones, pink noise, and frequency sweeps. It took a while to get the levels in the ballpark, but it works well enough for my purposes.
Wow. That's unique! It's a good idea given that, so far, I can't find a VOIP/POTS audio call testing service.
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