Swisscom operates VoIP systems for a number of large companies operating across multiple sites and also uses VoIP in-house for its own 20,000 employees. Voice over IP (VoIP) uses Internet Protocol (IP) addresses, which are not firmly bound to a physical location. VoIP systems are therefore not always able to determine the location from which calls are made. This limits the ability of existing VoIP systems to route emergency calls – a particular issue for users who work from multiple sites.
This impedes emergency service interventions and increases the load on emergency call centres. In the absence of a technical or regulatory solution, Swisscom elected to develop its own comprehensive solution within the framework of a group-wide pilot project.