Requirements; Identifying Phone Model; Phone Firmware; Dhcp Server - Cisco 7941 Manual

Requirements

Identifying phone model

To start and successfully complete registration of your Cisco phone you need to know which
phone model you will setup.
On the front of each Cisco phone there are exact model information that you should check.
Although different phone models can have exactly the same requirements and installation
procedure, phone models can also have significantly different requirements and installation
procedure, so that ignorance of your own model may result in the inability to successfully set up
your phone.

Phone firmware

Make sure that device is loaded with firmware (Application Load ID) 7.X or 8.X.
Press the Settings button.
Scroll to Status and press the select button.
Scroll to Firmware Versions and press the select button.
The firmware is listed under Application Load ID.

DHCP server

Fully configured and operational DHCP server.

PBXware version

In order to find out the PBXware version, please login to PBXware and navigate to Settings:
About. On the top of About page is a code similar to this one "PBXware Edition: Business,
Release: 3.1 (041373f), Running: 1.4.24-gc-75ee203", where "Release" denotes the exact version
of your PBXware.