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SPA5xx IP Phone 7.x Firmware Update Information


This document describes the 7.x firmware update to the SPA525G, SPA501G, SPA502G, SPA504G, SPA508G, SPA509G IP phones.

The first draft was issued on November 5th.

A revised issue was published on November 9th.

Document revised on January 20th for 7.4.3 and PVC2300 and WVC2300 camera support

Firmware location instructions are at

Release note location instructions are at:

SPA5xx Firmware: [Log in required]

SPA3xx Firmware: [Log in required]



Where is the firmware?

Patrick Born
Cisco Employee

Hi finalconnect,

Firmware is located on You do need to log in [free registration]

Here's a direct link to the SPA 525G firmware:

Here's a direct link to the SPA50x firmware:

Here's how to navigate to the firmware:

The document provides a link to:

1. The Cisco Support Center:

2. Click Download Software

3. Log in to

4. Click Voice and Unified Communications

5. Click IP Telephony

6. Click IP Phones

7. Click Cisco Small Business Pro SPA500 Series IP Phones

8. Select SPA525G for SPA525G firmware or select any of the SPA50xG phones for SPA50xG firmware. [SPA501G, SPA502G, SPA504G, SPA508G, & SPA509G all use the same image file]

Here is a 96-second screencast showing navigation to the firmware:




Rising star

are there instructions for installing this on a uc520/540?

Patrick Born
Cisco Employee

Hi mloraditch,

The SPA5xx firware is delivered as part of a software bundle for the UC5xx products and is typically not installed in an ad-hoc manner like the SIP versions are. The SPA5xx firmware will be included in a future UC5xx release. I don't have an available date.




Dan Lukes

Document claim that Verisign CA based certificates are recognized.

According  Verisign (now Symantec) tech support, VeriSign Class 3 Secure Server CA  based certificates are no longer issued.

Class 3 Public Primary  Certification Authority rooted certificates are sold under product name  "Secure Site" and "Secure Site Pro". They are rather expensive, but even worse, they are verified not to be accepted by SPA5xx with 7.5.5 firmware (connection rejected with X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY).