To enable the built-in Emergency Call capability, each BG (Business Group) is provisioned with an Emergency Calling
table that is provisioned using Telephony Control Server Assistant.
With Lotus Sametime Unified Telephony 18.104.22.168 the maximum number of entries in the Emergency Calling table was increased from 120 to 6000 per BG.
Every Emergency Calling
table entry is defined by
a mandatory IPv4 address or subnet and an optional IP6 address or subnet or
a Location Domain or
a combination of all of them
Different Emergency Calling
table entries may overlap in their IP subnet masks. Lotus Sametime Unified Telephony selects the smallest possible subnet containing the emergency caller's IP address.
IPV6 networks in mixed configurations (IPV4 parts and IPV6 parts) are supported by the Lotus Sametime Unified Telephony Assistant. Although the Telephony Control Server Assistant itself is currently deployed on IPV4, it is able to administer IPV6 addresses (128 bits) in the Lotus Sametime Unified Telephony switch and DLS (DlsAPI).
An example of a typical IPV6 address is 2001:db8:0:0:0:3:4:AA55
. A sequence of zeros can be abbreviated to a pair of colons, “::”, but only once in each address string. So the address above can be equivalently written as 2001:db8::3:4:AA55
. If the address is part of a longer string that allows colons to be used for other purposes, the IPv6 address should be enclosed in square brackets to eliminate ambiguity: [2001:db8::3:4:AA55]
Several additional parameters are provisioned with the subnet, determining the behaviour for outgoing emergency calls.
Send LIN instead of CPN:
With this flag Lotus Sametime Unified Telephony can be forced to send the LIN (Location Identification Number) instead of the CPN (Calling Party Number) in emergency INVITEs. Default is false, i.e. the CPN is sent.
This number can be up to 4 digits long. By suffixing the dialled emergency number and subsequent retranslation it determines the gateway to which the emergency call shall be routed in order to reach the PSAP (Public Safety Answering Point)
ALI DB ID and Passcode:
These parameters are used for authentication at the tandem office. The passcode is mandatory
Each Emergency Calling
table entry can be provisioned with a pool of LINs (Location Identification Numbers). The maximum number of LINs per BG is 100,000.
How to Add/Edit Emergency Calling Table Entries - General SettingsParent topic: Emergency Calling
How to Delete an Emergency Calling Table Entry
Subscriber Location Identification