Ran into this issue a long time ago, make sure you're passing callerID strictly in E.164 format On our end, it was only really an issue when calling into some rural telecom companies and the virgin islands. On Thu, Apr 22, 2021 at 5:05 PM Mike Hammett <voiceops at ics-il.net> wrote:
Have any of you noticed an increase in customer complaints of malformed caller ID?
We do a test call out as the customer, whether it's to one of our cell phones or one of the incumbent's POTS lines. Everything shows up as expected. The number is formatted correctly. The Caller ID name is formatted correctly.
However, we're getting customer complaints that the caller ID is saying Japan (we have nothing to do with Japan), United States, blank, or some other combination. We're just not able to confirm that.
Of course customers are reluctant to tell us what the numbers are of the remote parties having these issues, so we can't really look for common denominators.
----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com
Midwest Internet Exchange http://www.midwest-ix.com
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