Procedure
Step 1
Select
Info
>
Debug Info
.
Step 2
In the
Problem Report Tool
section, click the
Start Packet Capture
button in the
Packet Capture
field.
Step 3
Choose
Al
to capture all packets that the phone receives and select
Host IP Address
to capture packets only
when source or destination is the IP address of the phone.
Step 4
Make phone calls to and from the selected phone.
Step 5
When you want to stop the packet capture, click
Stop Packet Capture
.
Step 6
Click
Submit
.
You see a file in the
Capture File
field. This file contains the filtered packets.
Emergency Calls
Emergency Call Support Background
Emergency call service providers can register a phone's location for each IP-based phone in a company. The
location information server (LIS) transfers the emergency response location (ERL) to the phone. The phone
stores its location during registration, after the phone restarts, and when a person signs in to the phone. The
location entry can specify the street address, building number, floor, room, and other office location information.
When you place an emergency call, the phone transfers the location to the call server. The call server forwards
the call and the location to the emergency call service provider. The emergency call service provider forwards
the call and a unique call-back number (ELIN) to the emergency services. The emergency service or public
safety answering point (PSAP) receives the phone location. The PSAP also receives a number to call you
back, if the call disconnects.
See
Emergency Call Support Terminology, on page 188
for the terms used to describe emergency calls from
the phone.
You insert the following parameters to obtain the phone's location for any phone extension number:
• Company Identifier–A Unique number (UUID) assigned to your company by the NG9-1-1 service
provider.
• Primary Request URL–The HTTPS address of the primary server used to obtain the phone location.
• Secondary Request URL–The HTTPS address of a secondary server (backup) used to obtain the phone
location.
• Emergency Number–A sequence of digits that identify an emergency call. You can specify multiple
emergency numbers, by separating each emergency number with a comma.
Common emergency service numbers include:
• North America–911
• European countries–112
• Hong Kong–999
Cisco IP Phone 7800 Series Multiplatform Phones Administration Guide
187
Cisco IP Phone Administration
Emergency Calls
