CESID Assignment

Purpose:

The CESID Assignment form is used to assign a Customer Emergency Services ID (CESID) number to each prime directory number in the system. The CESID is sent to the Public Safety Answering Point (PSAP) in the event of an Emergency Call and is used as a key in the Automatic Location Information (ALI) database to pinpoint the precise location of the caller.

Use this form to perform the following tasks:

For more information about the Mitel Line Interface Module (LIM):

Conditions

None.

Field Descriptions

Parameter

Description

Default Value

CESID key

System-generated, protected field. Uniquely identifies the CESID instance.

 

Number

System-generated, protected field. Contains a list of all programmed prime directory numbers in the system. These numbers include Mitel IP phones, ONS sets, and Attendants.

 

Name

System-generated, protected field. Contains the name programmed in the telephone directory against the corresponding prime directory number.

 

Last Known CDP L2 Port MAC

System-generated, protected field. Displays the MAC address of the Layer 2 switch port where the IP device is currently connected.

If "Unstable" appears in this field for STP and/or CDP, it means that the device is receiving conflicting L2 MAC and Port data. This issue can occur if the device is connected to an L2 switch that doesn't have STP or CDP enabled, but the network components higher up in the network tree have STP or CDP enabled. Therefore, the L2 broadcast from the switch higher in the network tree gets passed though the lower L2 switch and the phone receives L2 data from multiple sources.

 

Last Known Port CDP Port Identifier

System-generated, protected field. Displays the CDP or STP (whichever is configured as the primary protocol in the "L2 Connectivity Detection Protocol" field) port number on the Layer 2 switch port where the IP device is currently connected.
If the port number cannot be displayed, you may see one of the following messages:

  • "Not Supported" - Indicates that the L2 switch does not have the primary protocol enabled.

  • "Not Applicable" - Indicates a non-IP device. L2 fields do not apply.

  • "Never Registered" - Indicates an IP device that has been programmed with the system but has never registered through an L2 connection point. The "CESID Updating" field will default to "Automatic" (the administrator can change this setting).

  • "Unknown" - Indicates an IP device that has been programmed in the system, but when the device registered, the device did not have the firmware load required for connectivity detection. A CESID alarm is generated for this device.

  • "Unstable" -  If "Unstable" appears in the Last Known Port Identifier field for STP and/or CDP, it means that the device is receiving conflicting L2 MAC and Port data. This issue can occur if the device is connected to an L2 switch that doesn't have STP or CDP enabled, but the network components higher up in the network tree have STP or CDP enabled. Therefore, the L2 broadcast from the switch higher in the network tree gets passed though the lower L2 switch and the phone receives L2 data from multiple sources.

 

CESID

Enter the CESID to be sent to the PSAP in the event of an emergency call. Up to 10 digits can be programmed. (CESID values do not apply to Hot Desk user DNs. The system uses the CESID associated with the hot desk set regardless of which profile—set or user—is active on the phone.)

Blank

CESID Comments

Enter location information for the specified person. This field is for internal use only and is not sent to the PSAP.

Blank

CESID Updating

Select Automatic or Manual.

The field provides the flexibility of turning off automatic CESID updating on a per-DN basis. DNs set to Manual will not have their CESID updated automatically or cause a CESID alarm when a CESID is detected missing.

For devices that support location detection, the default is Automatic.
The default for other devices (for example: DNIC, ONS, Generic SIP Phones, 5302 IP Phone, YA Pro, or wireless sets) is Manual, and the field is read-only.

Route Emergency Calls

Select one of the following:

Through System Only - The default handling for emergency calls from sets without a Line Interface Module attached. Programming a set which has a Line Interface Module attached with through system only preference will result in emergency calls always being routed through the system.

Through Analog Line First -In the event of an emergency call, the system will try to route the call through the analog line and if unsuccessful will route it through the system.

Through Analog Line Only - In the event of an emergency call, the only option for routing the call is through the analog line. If the call cannot be made through the analog line, then failure handling is applied.  

For systems without LIM the default is Through System Only.