E911 Warning, Emergency Calls & Security
WARNING
Do not dial emergency hotline numbers from the IP softphone.
In the case of an emergency, dial the appropriate local emergency-service number directly, or use the nearest local public phone to dial an emergency hotline.
The IP softphone communicates through a central telephone system that routes all emergency calls directly to a number that is local to the central system.
If the IP softphone is not at the same address as the central system, then emergency service will not be routed to the proper location.
Therefore, if the IP softphone does not stay within the premises of the central system, you must configure the IP softphone's programmable keys to dial the local police or fire departments directly, and you must clearly label the key icons.
If the IP softphone is mobile, meaning it is used in multiple locations, you must know the direct emergency-contact numbers for each location.
In the case of an emergency, you are responsible for determining the nature of the emergency and dialing the appropriate emergency-service number directly.
You must provide the emergency personnel your location and telephone number because the emergency service may not receive accurate identification information automatically.
Security
The implementation of SIP within the MiVoice Office like many other systems is NOT based on a secure data connection using TLS and certificates, and by definition is not secure.
With this in mind, we strongly suggest that when using SIP outside of your firewall infrastructure that every care is taken to ensure that a level of security is in place in line with your internal security policy.
This could involve (but may be not limited to) using NAT or establishing a secure VPN connection between remote clients and the corporate LAN.
Should you be in any doubt please consult the relevant Mitel documentation on securing your MiVoice Office installation.