Specifications

System Features
INTER-TEL
®
CS-5200/5400 ADMINISTRATOR GUIDE, ISSUE 1.0 – April 2005
Calling Party Number Field
Page 131
node other than the user’s node if the user accesses ARS and dials the emergency number.
Local trunks must be installed and used for emergency number trunk access and nodes
should not be used in Route Group 1. When a user places an emergency call, every adminis-
trator in the network receives an emergency alarm.
Calling Party Number Field
Each endpoint can be programmed to send an identifying number when a call is placed. The
“Calling Party Number field is located in Devices and Feature Codes/Endpoints/Individual
Endpoint programming. This information is required for emergency 911/999 calls in some
states. You can program any number up to 48 digits in the Calling Party Number field. How-
ever, check with your service provider to determine their specific requirements for this field.
This number will be sent in the ISDN setup message in the Calling Party Number Information
Element. In addition, the system will also send the extension number of the endpoint in the
Calling Party Number Subaddress Information Element. The CO should ignore this informa-
tion element if it does not support it.
If an off-premises extension is used for dialing 911/999, the 911/999 operators will see Calling
Party Number or the address of the location of the system, not the off-premises address. Off-
premises personnel should be prepared to give the correct address and other pertinent informa-
tion if it is not programmed as the Calling Party Number. The following diagrams illustrate a
remote site without and with an MGCP gateway.
Figure 10.
Example of a Remote Site without an MGCP Gateway Application
Figure 11. Example of a Remote Site with an MGCP Gateway Application
NOTE
There is no default number for this field. It is up to the programmer to supply the
correct Emergency Calling Party Number for each endpoint.
Inter-Tel CS-5200/5400
PSTN
IP NETWORK
IP Endpoint
911
Operator
Located in Orange, CA
Caller ID Display:
714-283-1600
480-961-9000
Located in Phoenix, AZ
480-961-9000
Remote Site
Caller dials 911
In Phoenix, AZ
PSTN
IP NETWORK
IP Endpoint
911
Operator
Located in Orange, CA
Caller ID Display:
714-283-1600
714-283-1600
Located in Phoenix, AZ
480-961-9000
Remote Site
MGCP
Gateway
(i.e., AudioCodes)
Caller dials 911
In Orange, CA
Inter-Tel CS-5200/5400