User's Manual

Parameter name Description Default value
value 2 indicates that the refresher
is configured to UAC.
Emergency Services
Important:
Avaya strongly recommends testing the emergency services feature with the entire
communications system, including the IP Deskphones during and after the installation of the
communications systems. Avaya strongly recommends making arrangements with the
Public Safety Answering Point (PSAP) provider to test actual emergency calls.
You can use the Avaya 1100 Series IP Deskphone to make an emergency call to the Public
Safety Answering Point (PSAP), from any screen, without a user being logged on. When you
connect to the PSAP, the IP Deskphone conveys the caller’s location information to the PSAP,
if the network supports this feature. If you are not logged on to the IP Deskphone and you pick
up the handset or press the handsfree or headset button, the message Emergency calls only
appears on the screen of the IP Deskphone.
If you hang up before the connection is established, the IP Deskphone goes back to the initial
state. After the connection is established, the call can only be ended by the Public Safety
Answering Point (PSAP). If you hang up, the IP Deskphone switches to loudspeaker. If the IP
Deskphone is already on the loudspeaker mode, and you press the hang up button, nothing
happens. The call is still connected and can only be disconnected by the emergency
operator.
Emergency calls originate on the IP Deskphone and are completed by the Call Server. The
Call Server communicates with the emergency network or emergency systems for routing, call
control, and location information. Although the IP Deskphone allows the user to enter location
information, this location information is not used by all Call Servers. Some Call Servers derive
the location information based on the number and location databases. Characteristics of
emergency calls and limitations of emergency calls using the IP Deskphone are as follows:
• Making calls without logging on is only allowed for emergency calls (according to the
defined dialing plan).
• Transmission of the location information depends on support of the proxy and the
network.
Emergency Services
SIP Software for Avaya 1100 Series IP Deskphones-Administration November 2012 189