Release Notes for Cisco Small Business SPA525G2 IP Phone Firmware Version 7.6(2)SR4

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Updated:April 16, 2018

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Table of Contents

Release Notes for Cisco Small Business SPA525G2 IP Phone Firmware Release 7.6(2)SR4

Introduction

Software Compatibility

Hardware and Firmware Compatibility

New and Changed Features

Caveats

Access Cisco Bug Search

Open Caveats

Resolved Caveats

Behavior During Times of Network Congestion

Related Documentation

Cisco Small Business

Cisco Small Business Product Documentation

Additional Information

Obtaining Documentation and Submitting a Service Request

Release Notes for Cisco Small Business SPA525G2 IP Phone Firmware Release 7.6(2)SR4

First Published: April 18, 2018

Introduction

This document describes the updates and fixes in Cisco Small Business SPA525G2 IP Phone Firmware Release 7.6(2)SR4.

As with any firmware release, read these release notes before you upgrade the firmware. Cisco also recommends that you back up the configuration before you perform any firmware upgrade.

Software Compatibility

This firmware release is only for the RC SKU. For non-RC SKUs, the firmware is the same as firmware release 7.5.7s.

Hardware and Firmware Compatibility

The following matrix describes the hardware and firmware compatibility.

 

SN Range
7.6(2)SR3, 7.6(2)SR2, 7.6(2)SR1, 7.6.2, 7.6.0, 7.5.7s, 7.5.7, 7.5.6c, 7.5.5c, 7.5.6, 7.5.5b
7.5.5 or earlier

SPA525G2
(128M flash + Old SLIC)

MP

after CCQ18160L03 (included 0L03)

Control Run

CCQ18160L03 to CCQ18160L5M

Yes

No

SPA525G2
(32M flash + Old SLIC)

Before CCQ18160L03

Yes

Yes

Note SPA525G2-RC(128M flash) and SPA525G2-EU(128M flash) have the same hardware and firmware compatibility with SPA525G2(128M flash).

Note SPA525G2-RC(32M flash) has the same hardware and firmware compatibility with SPA525G2(32M flash).

New and Changed Features

There are no new or changed features in this release.

Caveats

This section describes the resolved and open caveats, and provides information on accessing the Cisco Software Bug Toolkit.

Access Cisco Bug Search

Known problems (bugs) are graded according to severity level. These release notes contain descriptions of the following:

  • All severity level 1 or 2 bugs
  • Significant severity level 3 bugs

You can search for problems by using the Cisco Bug Search.

Before You Begin

To access Cisco Bug Search, you need the following items:

  • Internet connection
  • Web browser
  • Cisco.com user ID and password

Procedure

Step 1 To access the Cisco Bug Search, go to:

https://tools.cisco.com/bugsearch

Step 2 Log in with your Cisco.com user ID and password.

Step 3 To look for information about a specific problem, enter the bug ID number in the Search for field, then press Enter.

Open Caveats

There are currently no open defects for the Cisco Small Business SPA525 for Firmware Release 7.6(2)SR4.

Resolved Caveats

The following table lists severity 1, 2, and 3 defects that are resolved for the Cisco Small Business SPA525 for Firmware Release 7.6(2)SR4.

For more information about an individual defect, search for the caveat in the Bug Search Toolkit. You must be a registered Cisco.com user to access this online information.

Because defect status continually changes, the table reflects a snapshot of the defects that were resolved at the time this report was compiled. For an updated view of resolved defects, access Bug Toolkit as described in Access Cisco Bug Search.

 

Identifier
Headline

CSCvb85650

Evaluation of spa-525 for CVE-2016-5195 (DIRTY CoW)

CSCvf66313

SPA 525 phones 'SUBSCRIBE' Not working with Huawei SBC

CSCvf72200

Array overflow issue exist in this phone

CSCvg08957

SPA525G: Malformed Via header causes phone to become unresponsive

Behavior During Times of Network Congestion

Anything that degrades network performance can affect voice and video quality, and in some cases, can cause a call to drop. Sources of network degradation can include, but are not limited to, the following activities:

  • Administrative tasks, such as an internal port scan or security scan
  • Attacks that occur on your network, such as a Denial of Service attack

To reduce or eliminate any adverse effects to the devices, schedule administrative network tasks during a time when the devices are not being used or exclude the devices from testing.

Related Documentation

Cisco Small Business

For more information on Cisco Small Business, see https://www.cisco.com/smb.

Cisco Small Business Product Documentation

For more information on Cisco Small Business SPA500 Series IP Phones, see https://www.cisco.com/c/en/us/products/collaboration-endpoints/small-business-spa500-series-ip-phones/index.html.

For more information on Regulatory Compliance and Safety Information for the Cisco SPA300 Series and Cisco SPA500 Series IP Phones, see

https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/csbpipp/ip_phones/regulatory_compliance/guide/rcsi_SPA300_SPA500.pdf.

Additional Information

For more information on Cisco Small Business Support Community, see https://supportforums.cisco.com/community/5541/small-business-support-community.

For more information on Cisco Small Business Support and Resources, see https://supportforums.cisco.com/community/3226/small-business-support-service.

To access the Phone Support Contacts, see https://www.cisco.com/en/US/support/tsd_cisco_small_business_support_center_contacts.html.

For downloading the software, see https://software.cisco.com/download/navigator.html.

Obtaining Documentation and Submitting a Service Request

For information on obtaining documentation, using the Cisco Bug Search Tool (BST), submitting a service request, and gathering additional information, see What’s New in Cisco Product Documentation at: https://www.cisco.com/c/en/us/td/docs/general/whatsnew/whatsnew.html.

Subscribe to What’s New in Cisco Product Documentation, which lists all new and revised Cisco technical documentation as an RSS feed and delivers content directly to your desktop using a reader application. The RSS feeds are a free service.

 

Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of Cisco trademarks, go to this URL: www.cisco.com/go/trademarks. Third-party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (1721R)

Any Internet Protocol (IP) addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers. Any examples, command display output, network topology diagrams, and other figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses or phone numbers in illustrative content is unintentional and coincidental.

© 2018 Cisco Systems, Inc. All rights reserved.

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