SIP error 484 while making some international calls

[Liptonbrisk]

It's been brought to my attention that some outbound calls to international destinations are failing.

This is clearly not due to entering the wrong or incomplete number.

SIP error 484 usually means the wrong/incomplete phone number was entered, but this isn't the case. Calls that used to complete no longer do.

Calls to HMV numbers in the U.K., for example, aren't working currently.

011448432210357 (HMV Westfield) no longer works.

https://www.freephoneline.ca/findMyRate
Number: 448432210357
Price: $0.19
Country: UNITED KINGDOM


I believe the 484 SIP error code being returned is wrong here. Instead, I think the carrier being used is declining calls possibly due to surcharges and increased costs.
I'm basing this on an observation that a few carriers no longer offer a route to that number or simply decline the call.
TATA Communications used to be a carrier that could complete the call for under 3.5 cents USD a minute in past years, and it now costs close to 66 cents USD per minute in 2023.

Apparently, calls to a Ukraine number no longer works either: https://forums.redflagdeals.com/freepho ... #p37668040.

Anyway, I have sent a message to Fongo about this long distance carrier issue.

[Liptonbrisk]

If you notice some international calls are no longer working with Freephoneline that once did, submit a ticket: https://support.fongo.com/hc/requests/new.
Choose "World Credits Inquiry" for the final issue type.

They appear to be manually unblocking destinations on a per account basis.

The 484 SIP error response code is pretty misleading since the number that's sent is complete and accurate.