How to Download and Install P0S3-08-8-00.ZIP Firmware for Cisco IP Phones
Do you want to get the most out of your Cisco IP phone? Do you want to enjoy new features, enhancements, and bug fixes for your phone? If so, you may want to update your firmware to the latest version: P0S3-08-8-00.ZIP. In this article, we will show you how to download and install P0S3-08-8-00.ZIP firmware for Cisco IP phones 7940G and 7960G.
What is P0S3-08-8-00.ZIP?
P0S3-08-8-00.ZIP is a firmware file that can update your Cisco IP phone 7940/7960 to support SIP. SIP stands for Session Initiation Protocol, which is a standard protocol for initiating and managing voice and video calls over the Internet. SIP allows you to use your IP phone with various VoIP services and applications, such as Skype, Google Voice, and Cisco Unified Call Manager.
P0S3-08-8-00.ZIP firmware also provides image authentication, which allows the phone to detect if the firmware has been tampered with before it is programmed into the phone. If the firmware fails the authentication process, then the phone will reject the firmware. This improves the security of your IP phone.
Where can I download P0S3-08-8-00.ZIP?
You can download P0S3-08-8-00.ZIP from the Cisco website. The file is listed under the Software Download Center section for Cisco IP Phone 7940/7960 Firmware Load 8.8 SIP. You will need a Cisco account to access the download page. If you do not have one, you can register for free on the Cisco website.
The file size of P0S3-08-8-00.ZIP is about 5 MB. You can check the MD5 hash of the file to verify its integrity after downloading it. The MD5 hash of P0S3-08-8-00.ZIP is B485D35DBFEFF2CC1FD2018EA47AECA2.
How can I install P0S3-08-8-00.ZIP?
To install P0S3-08-8-00.ZIP, you will need Cisco Unified Call Manager version 5.0 or higher. You cannot use third-party or Windows-based software applications to install the firmware. You will also need to connect your IP phone to a network that has access to the Call Manager server.
The installation process is as follows:
Using your web browser, log in to the Cisco IPT Platform Administration web page.
Under the Software Upgrades menu, select Install/Upgrade.
Fill in the appropriate values in the Software Location section for the file you downloaded above, and click Next.
In the Available Software drop-down box, select the file you downloaded above, and click Next.
Follow the instructions on the screen to complete the installation.
The installation may take several minutes. Do not power off or disconnect your IP phone during the installation. After the installation is complete, your IP phone will reboot and load the new firmware.
P0S3-08-8-00.ZIP is a firmware update that can enhance the performance and security of your Cisco IP phone 7940/7960. It supports SIP protocol, which allows you to use your IP phone with various VoIP services and applications. You can download and install P0S3-08-8-00.ZIP from the Cisco website using Cisco Unified Call Manager version 5.0 or higher.
We hope this article has helped you learn how to download and install P0S3-08-8-00.ZIP firmware for Cisco IP phones. If you have any questions or feedback, please leave a comment below.