Dear customer, dear partner,
As some of you unfortunately already experienced, recent changes are causing troubles for Luxemburgish VoIP terminating to end properly with Luxemburgish CLI.
After several investigations through multiple international carriers, we could discover that a general call barring have been applied by these carriers to not allow calls from Luxembourg to Luxembourg to go through a non-Luxembourgish network.
This results that calls issued with Luxembourgish number to a Luxembourgish number will no longer be possible if they are transiting through a non-Luxembourgish carrier, while calls issued with a Belgian number to a Luxembourgish number will perfectly work.
The legal explanation received is the following :
“Direct suppliers advised that they observed massive spam calls from different rotative fakes numbers starting with different Luxembourgish prefixes like +352 3xx xxx or +352 9xxxx therefore a blocking has been implemented.
Also, they advised that calls from Luxembourg with Luxembourgish fixed A-numbers should not be routed via international carriers due to spam and fake call situation.”
After multiple exchanges, we can confirm that at no moment we, Sewan, is responsible of this situation, but is a victim of it.
As we think this situation is a completely non sense, we are at this very moment trying to find a practical way to work with our suppliers in order to allow our legitimate traffic.
At this moment, we cannot confirm that we will find a commercial agreement.
Please note that this situation is general and affect the major international carriers with whom we work.
Sewan Team
