UCM6510 IP PBX User Manual

Sep 25, 2026

Uploaded by OmBimo

UCM6510 IP PBX User Manual for Grandstream Networks provides product-use guidance, including cautions about authorized modifications and power adapter compatibility to avoid damage and warranty voiding. The manual explains firmware change tracking via a documented change log and lists multiple firmware versions with associated sections/pages. It also includes GNU GPL information describing third-party software licensing inside UCM6510 firmware and where related GPL source code can be downloaded.

LanguageEnglish

CategoryGeneral

FormatPDF

Pages488

Reading Time2 h 51 min

AccessFree to download

Document Purpose

Change Log

Firmware Version 1.0.20.38

Firmware Version 1.0.20.34

Firmware Version 1.0.20.31

Firmware Version 1.0.20.28

Firmware Version 1.0.20.23

Firmware Version 1.0.20.22

Firmware Version 1.0.20.20

Firmware Version 1.0.20.17

Firmware Version 1.0.19.29

Firmware Version 1.0.19.27

Firmware Version 1.0.19.21

Firmware Version 1.0.18.13

Firmware Version 1.0.18.12

Firmware Version 1.0.18.9

Firmware Version 1.0.17.16

Firmware Version 1.0.16.20

Firmware Version 1.0.16.18

Firmware Version 1.0.15.16

Firmware Version 1.0.14.24

Firmware Version 1.0.14.23

Firmware Version 1.0.14.21

Firmware Version 1.0.13.14

Firmware Version 1.0.12.19

Firmware Version 1.0.11.27

Firmware Version 1.0.10.44

Firmware Version 1.0.10.39

Grandstream Networks, Inc. UCM6510 IP PBX User Manual COPYRIGHT ©2021 Grandstream Networks, Inc. [http://www.grandstream.com](http://www.grandstream.com. Al)[. Al](http://www.grandstream.com. Al)l rights reserved. Information in this document is subject to change without notice. Reproduction or transmittal of the entire or any part, in any form or by any means, electronic or print, for any purpose without the express written permission of Grandstream Networks, [Inc. is](Inc. is) not allowed. The latest electronic version of this user manual is available for download here: [http://www.grandstream.com/support](http://www.grandstream.com/support) Grandstream is a registered trademark and Grandstream logo is trademark of Grandstream Networks, Inc. in the United States, Europe and other countries. CAUTION Changes or modifications to this product not expressly approved by Grandstream, or operation of this product in any way other than as detailed by this User Manual, could void your manufacturer warranty. WARNING Please do not use a different power adaptor with your devices as it may cause damage to the products and void the manufacturer warranty. GNU GPL INFORMATION UCM6510 firmware contains third-party software licensed under the GNU General Public License (GPL) . Grandstream uses software under the specific terms of the GPL. Please see the GNU General Public License (GPL) for the exact terms and conditions of the license. Grandstream GNU GPL related source code can be downloaded from Grandstream web site from: [http://www.grandstream.com/support/faq/gnu-general-public-license/gnu-gpl-information-download](http://www.grandstream.com/support/faq/gnu-general-public-license/gnu-gpl-information-download) Table of Content DOCUMENT PURPOSE...........................................................................27 CHANGE LOG .........................................................................................28 Firmware Version [1.0.20.38](1.0.20.38)................................................................................................................. 28 Firmware Version [1.0.20.34](1.0.20.34)................................................................................................................. 28 Firmware Version [1.0.20.31](1.0.20.31)................................................................................................................. 28 Firmware Version [1.0.20.28](1.0.20.28)................................................................................................................. 29 Firmware Version [1.0.20.23](1.0.20.23)................................................................................................................. 29 Firmware Version [1.0.20.22](1.0.20.22)................................................................................................................. 29 Firmware Version [1.0.20.20](1.0.20.20)................................................................................................................. 29 Firmware Version [1.0.20.17](1.0.20.17)................................................................................................................. 29 Firmware Version [1.0.19.29](1.0.19.29)................................................................................................................. 34 Firmware Version [1.0.19.27](1.0.19.27)................................................................................................................. 34 Firmware Version [1.0.19.21](1.0.19.21)................................................................................................................. 35 Firmware Version [1.0.18.13](1.0.18.13)................................................................................................................. 35 Firmware Version [1.0.18.12](1.0.18.12)....................................................................................

FAQs

What is the document’s purpose section about?

The manual includes a “DOCUMENT PURPOSE” section that starts the guidance for using the UCM6510 IP PBX.

Why does the manual warn against modifications or using a different power adaptor?

It cautions that changes not expressly approved, or operation outside the User Manual’s details, could void the manufacturer warranty. It also warns not to use a different power adaptor because it may damage the product and void warranty.

What GNU GPL information is provided for UCM6510 firmware?

The manual states that UCM6510 firmware contains third-party software licensed under the GNU General Public License (GPL) and points to the GPL terms. It also provides a download location for related GPL source code.

Sep 25, 2026

Uploaded by OmBimo