Please be advised of the following planned engineering works on the IP Voice Services platform:

 Date: Saturday 26/01/13 23:00 to Saturday 27/01/13 02:00

 Purpose

The Engineering Team will be carrying out works to replace a Session Border Controller (SBC) cluster with new hardware between 2300 on 26/01/2013 and 0200 27/01/2013.

Due to the redundant nature of the cluster whilst one element is replaced all existing calls and new traffic will be served by the secondary element, when service is switched from one element to another all call and registration states will be sustained.

There is no expected effect on voice calls as a result of these works.

Impact

Expected impact is LOW.

They will be closely monitoring the potentially affected systems to ensure any disruption is as brief as possible if experienced.

Regards,

Comtec Network Operation Centre

For urgent operational issues please always contact noc at comtec.com or

0845 899 1423 and not any named individual.