Past Incidents

Beginning: 18.06.2021 – 10.37 AM

Ending: 18.06.2021 – 10.48 AM

Impact: V5 packloss and lose of registration

Dear customer, dear partner,

We experienced today 11 minutes of problems with an RTP media gateway. There were scenario’s in which a loop was not detected, which resulted in quickly growing rtp stream. This could quickly be resolved case-by-case, by finding the culprit stream and kill it. Yet, this was not a long term solution, as it gave unexpected issues on the platform, like slow responses on SIP messages.

While debugging this, the quickest way to come back to a full resolution, was a restart of the registrar, which broke sip registration for a brief period of time. (until next registration)

With the software team of this product, we were able to receive an updated version ending of last week, which was rolled out on one gateway so far. The first results are very promising, the loops do not occur.

We are planning to upgrade all our media gateways to this version.

Our apologies for the inconvenience.

Best regards;

SEWAN technical team

Beginning: 10.06.2021 – 2.36 PM

Ending: 10.06.2021 – 5.30 PM

Impact: Degradation of overall voice quality

Dear customer, dear partner,

since 2.36PM today, we experienced iterative problems in reachability and packetloss. This resulted for some customers which were routed to us over several IP Transit providers in calls being cut, registrations being lost and bad quality in the calls. After checking with two of these carriers, the problems were confirmed to find their origin in Packetloss in one of the major backbones in Brussels, due to a very high volume of traffic they had to cope with.

At 5.30PM, we were informed the problems were totally resolved at their side.

Our apologies for any inconvenience this may have caused.

Best regards;

SEWAN technical team

Beginning: 07.06.2021 – 03.15 AM

Ending: 07.06.2021 – 02.00 PM

Impact: Mobile 4G (LTE) unavailable - National

Dear customer, dear partner,

Since 03.15 AM this morning, we have been alerted that a general failure on Proximus mobiel network affect the 4G coverage.

An intervention on a PE router, caused a service interruption for mobile voice and mobile data on 4G on 07/06 at 03:15. All mobile phones were able to connect to 2G and 3G as fall back. Impact is gradually clearing since 06:00 as users are reconnecting to 4G.

Proximus expert teams are assuring technical aftercare. No further impact is expected. In the event that one of your customers cannot reconnect to 4G, please advise to put the mobile phone on flight mode and to reconnect.

SEWAN Technical Team