Some systems are experiencing issues
Scheduled Maintenance
[SEWAN] Technical maintenance - 22.08.2025

Beginning: 22.08.2025 – 11.00 PM

Ending: 23.08.2025 – 03.00 AM

 

Impact: interruption on Sophia Trunk and Hosted Telephony.

 

Dear customer, dear partner,

 

To optimize the performance of our infrastructure, we will be carrying out a maintenance operation.

During this timeframe, a call cut is expected.

 

No intervention is needed from your side.

 

 

Best regards;

 

 

SEWAN Technical Team

Past Incidents

Friday 8th January 2021

No incidents reported

Thursday 7th January 2021

General communicate service [SEWAN] General information 08.01.2021

Beginning: 07.01.2021 – 11.54 PM

Ending: 08.01.2021 – 6.10 AM

Impact: Proximus fixed and mobile services impacted

 

Dear customer, dear partner,

 

Proximus informed us that one of their planned maintenance encountered an incident which generated disturbances on both their fixed and mobiel telephony.

 

Please find below their official communication:  


Some of our fixed and mobile services were impacted during the night of 7 to 8 January due to an intervention on a section of the voice infrastructure.

During the night of 7 to 8 January an intervention was planned on a section of the voice infrastructure. During the intervention an unexpected error occurred which impacted some of our fixed and mobile services. Some emergency centres in some provinces were also not reachable. The incident started at 23:54 and at 6:10 am we were able, together with our vendor, to correct the error. The situation is stable since then.

We are further investigating the technical cause of the unexpected error in order to define proactive remedies. We apologize for any possible inconvenience encountered to you and your end-customers.


 

SEWAN has not been impacted in any kind, but if you have received this morning complaints about Proximus beeing unavailable, this may be the reason.

 

SEWAN Technical Team

General communicate service [SEWAN] Unexpected disturbances - 07.07.2021

Beginning: 07.01.2021 – 11.38 AM

Ending: 07.01.2021 – 11.54 AM

Impact: Outbound call to Belgium mobile congested

 

Dear customer, dear partner,

 

This morning, we briefly experienced partial congestion on outbound calls to Belgium mobile, from 11.38AM till 11.54AM.

The reason is that we implemented a new technical route for national mobile into production, which unfortunately wasn't functioning as expected, despite prior test scenarios gave positive results.

 

We therefore immediately rolled back and take this new route into quarantine for analysis.

 

Best regards;

SEWAN technical team

Wednesday 6th January 2021

No incidents reported

Tuesday 5th January 2021

No incidents reported

Monday 4th January 2021

No incidents reported

Sunday 3rd January 2021

No incidents reported

Saturday 2nd January 2021

No incidents reported

Friday 1st January 2021

No incidents reported

Thursday 31st December 2020

No incidents reported

Wednesday 30th December 2020

General communicate service [SEWAN] Unexpected disturbances - 30.12.2020

Beginning: 30.12.2020 – 3.44 PM

Ending: 30.12.2020 – 4.16 PM

Impact: General VoIP disturbances

 

Dear customer, dear partner,

 

Yesterday afternoon, we experienced a general disturbance on our VoIP network due to one of our media gateways which encountered a problem with its kernel module. This resulted in large delays in call setups, overloading the UDP buffers and eventually also limiting registrations.

 

As a mitigation, we’re splitting of the registration part of the routing part, this should make sure we don’t lose registrations when something happens on the routing part, and inverse.

 

All our apologize for the problems this may have caused.

 

Best regards;

SEWAN technical team

Tuesday 29th December 2020

No incidents reported

Monday 28th December 2020

No incidents reported

Sunday 27th December 2020

No incidents reported

Saturday 26th December 2020

No incidents reported

Friday 25th December 2020

No incidents reported