S 2.28 Availability of external telecommunications advisory services

Initiation responsibility: IT Security Officer, Head of IT, PBX System Manager

Implementation responsibility: Head of IT, PBX System Manager

In order to be able to make quick use of expert assistance, consideration should be given to the provision of corresponding consulting services at the time of purchase and/or when leasing a PBX system. In this case, it is important that support is provided promptly in an emergency, since the failure of a PBX system may significantly impair the operability of the entire organisation and can only be tolerated for a short period of time, it at all.

Review questions:

• Do the agreed SLAs meet the requirements of the organisation?
• Is it possible to rely on external consulting services for the PBX system in the event of an emergency?