Please see below a communication we have received from Three regarding planned maintenance on the above date and time.
This is to inform you that essential maintenance is planned for the above date and time on the Three SMSC (Hemel) platform, this is expected to cause a short duration interruption to your service.
If Partners remain connected to both sites the expected impact is:
We do not expect SMPP/UCP applications to disconnect but traffic being rejected temporarily during the SMSC core process restart.
Traffic originated from Partners will experience minor delays between 22:30 (UTC+1) 18th October and 03:00 (UTC+1) 19th October during the upgrade.
This traffic should be retried and shall be successful in the retry. However we suggest not to plan any Major Campaigns during this time.
Traffic originated from Subscribers towards the Partners will suffer minor delays.
The above date and time may change, if it does we will inform you as soon as we know to provide as much notice as possible. Three will always endeavour to carry out these outages at a time which will have the least amount of impact on services and for the shortest amount of downtime as possible.
Please note we are connected to both SMSC's so do not expect any interruption to service during the maintenance window.
Kind regards
Fonix Operations Team
Posted Oct 12, 2016 - 09:31 BST
This scheduled maintenance affected: Mobile Operator Connections (Three-UK).