Table Of Contents
Cisco IP Phone 7960G and 7940G Release Notes for Firmware Release 7.2(4)
Use these release notes with the 7.2(4) firmware release (P00307020400) for the Cisco IP Phone models 7960G and 7940G that are running on Cisco CallManager Versions 4.1, 4.0, 3.3, 3.2, and 3.1.
You might need to notify your Cisco IP Phone users about some of the information provided in this document. These release notes provide the following information:
Refer to these documents for more information about the Cisco IP Phone models 7960G and 7940G, and Cisco CallManager.
The following sections provide information about the 7.2(4) firmware release P00307020400 for the Cisco IP Phone models 7960G and 7940G:
New Cisco IP Phone Software Features
The following new software features are available with Cisco CallManager Release 4.1(2) and supported in the P00307020400 firmware for the Cisco IP Phone models 7960G and 7940G.
For a complete list of all new features in Cisco CallManager Release 4.1(2), refer to the Release Notes for Cisco CallManager Release 4.1(2).
Note You can find more details about these features in the Cisco IP Phone 7960G/7940G Guide.
Secure PC Log Off in an 802.1X Network
Firmware release 7.2(4) provides support for the Cisco IP Phone models 7960G and 7940G to monitor IEEE 802.1X messages between an authenticating switch and a connected PC (supplicant).
When a PC is disconnected from the Cisco IP Phone, the phone issues an EAPOL-Logoff message on behalf of the PC to the authenticating switch. The proxy EAPOL-Logoff message causes the authenticating switch to set the PC port on the phone to an unauthenticated state and immediately terminates the 802.1x secure session.
If you have an 802.1X network and upgrade to Cisco IP Phone firmware release 7.2(4) or greater, be aware that you must re-authenticate a PC that is connected to a Cisco IP Phone 7940/60 after the upgrade.
For more information about 802.1X re-authentication, refer to the Cisco Catalyst switch configuration guides at:
Upgrading from Firmware Release 6.0(5)
If you are upgrading from a previous firmware release, note that the "Known and Resolved Problems" section is a list of problems since the last firmware release 7.2(3). To see the list of resolved problems in other firmware releases, refer to this URL:
Resetting a Cisco IP Phone Model 7960 or 7940
In previous releases, you could enter the reset code when a phone was on-hook at the main phone screen. With this release, you can no longer reset the phone from the main screen; instead, you must use the Settings screen or any other screen that does not accept user input. This new behavior results from a customer requirement to allow beginning a dialing sequence with * or # while the phone is on-hook.
To reset a Cisco IP Phone model 7960 or 7940, follow these steps:
Step 1 From the main screen, press Settings to display the Settings screen.
Step 2 Enter **#** by using the keypad.
The IP phone goes through the reset cycle.
Note This reset sequence also works from any other screen that does not accept user input.
Cisco IP Phone Expansion Module 7914
If you are using the Cisco IP Phone Expansion Module 7914, you must upgrade the Expansion Module to firmware release S00104000100 before you install the Cisco IP Phone firmware release 7.2(4). You can download the installation program, which is named cmterm-7914-sccp.4-0-1.exe, and the readme file from Cisco.com at this location:
Configurable SRST Router Fallback Waiting Period
When a Cisco IP Phone loses its connection to the Cisco CallManager server, the connection fails over to an SRST router. After a failover to an SRST router, the phone will monitor the links to the Cisco CallManager servers that the phone can register to. When a server has been available for two minutes, by default, the phone will fall back from the router to that server.
You can change this default time by specifying another value for the station connection monitor duration parameter in Cisco CallManager Administration. For more information, refer to Cisco CallManager Administration Guide.
Using Barge on an Encrypted Call
Cisco IP Phone models 7960G and 7940G users cannot barge into an encrypted call if the phone that is used to barge is not configured for encryption. When barge fails in this case, a fast busy tone plays on the phone where the user initiated the barge. No error message displays on the initiator phone to indicate that barge failed because the call is encrypted.
If the initiator phone is configured for encryption, the barge initiator can barge into an authenticated or nonsecure call from the encrypted phone. After the barge occurs, Cisco CallManager classifies the call as nonsecure.
If the initiator phone is configured for encryption, the barge initiator can barge into an encrypted call, and the phone indicates that the call is encrypted.
A user can barge into an authenticated call, even if the phone that is used to barge is nonsecure. The authentication icon continues to display on the authenticated devices in the call, even if the initiator phone does not support security.
Configurable Parameter for PCs on a VLAN
When PCs are connected to Cisco IP Phones, a new IP phone parameter enables phones to strip the 802.1p/q tags from packets as they exit the phone PC port. This parameter applies to systems that use voice VLANs with non-Cisco switches. The parameter is available only when the Admin VLAN is active.
The parameter setting is disabled when it is blank. If the parameter has any value (from 1-4094), the phone will strip tags from all VLANs. For example, if PC VLAN = 123, then tags from VLAN 123 and all other VLANs will be stripped.
To access the new PC VLAN parameter, follow these steps:
Step 1 From the main screen, press Settings to display the Settings options.
Step 2 Choose Network Configuration.
Step 3 Scroll to PC VLAN (parameter 58).
Note The parameter setting is disabled if blank.
Known and Resolved Problems
Known problems (bugs) are graded according to severity level. These release notes contain descriptions of:
•All severity level 1 or 2 bugs.
•Significant severity level 3 bugs.
You can search for problems by using the Cisco Software Bug Toolkit.
To access Bug Toolkit, you need the following items:
•Cisco.com user ID and password
To use the Software Bug Toolkit, follow these steps:
Step 1 To access the Bug Toolkit, go to http://www.cisco.com/cgi-bin/Support/Bugtool/launch_bugtool.pl.
Step 2 Log on with your Cisco.com user ID and password.
Step 3 Click the Launch Bug Toolkit hyperlink.
Step 4 To look for information about a specific problem, enter the bug ID number in the "Enter known bug ID" field and click Search.
Table 2 describes the problems that are known to exist in the 7.2(4) firmware release for the Cisco IP Phone models 7960G and 7940G (shortened to Cisco IP Phone 7960/40 in the problem summary).
Table 3 describes the problems that are resolved in the 7.2(4) firmware release for the Cisco IP Phone models 7960G and 7940G (shortened to Cisco IP Phone 7960/40 in the problem summary).
Cisco documentation and additional literature are available on Cisco.com. Cisco also provides several ways to obtain technical assistance and other technical resources. These sections explain how to obtain technical information from Cisco Systems.
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Cisco Product Security Overview
Cisco provides a free online Security Vulnerability Policy portal at this URL:
From this site, you can perform these tasks:
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•Register to receive security information from Cisco.
A current list of security advisories and notices for Cisco products is available at this URL:
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Reporting Security Problems in Cisco Products
Cisco is committed to delivering secure products. We test our products internally before we release them, and we strive to correct all vulnerabilities quickly. If you think that you might have identified a vulnerability in a Cisco product, contact PSIRT:
•Emergencies — firstname.lastname@example.org
•Nonemergencies — email@example.com
Tip We encourage you to use Pretty Good Privacy (PGP) or a compatible product to encrypt any sensitive information that you send to Cisco. PSIRT can work from encrypted information that is compatible with PGP versions 2.x through 8.x.
Never use a revoked or an expired encryption key. The correct public key to use in your correspondence with PSIRT is the one that has the most recent creation date in this public key server list:
In an emergency, you can also reach PSIRT by telephone:
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Obtaining Technical Assistance
For all customers, partners, resellers, and distributors who hold valid Cisco service contracts, Cisco Technical Support provides 24-hour-a-day, award-winning technical assistance. The Cisco Technical Support Website on Cisco.com features extensive online support resources. In addition, Cisco Technical Assistance Center (TAC) engineers provide telephone support. If you do not hold a valid Cisco service contract, contact your reseller.
Cisco Technical Support Website
The Cisco Technical Support Website provides online documents and tools for troubleshooting and resolving technical issues with Cisco products and technologies. The website is available 24 hours a day, 365 days a year, at this URL:
Access to all tools on the Cisco Technical Support Website requires a Cisco.com user ID and password. If you have a valid service contract but do not have a user ID or password, you can register at this URL:
Note Use the Cisco Product Identification (CPI) tool to locate your product serial number before submitting a web or phone request for service. You can access the CPI tool from the Cisco Technical Support Website by clicking the Tools & Resources link under Documentation & Tools. Choose Cisco Product Identification Tool from the Alphabetical Index drop-down list, or click the Cisco Product Identification Tool link under Alerts & RMAs. The CPI tool offers three search options: by product ID or model name; by tree view; or for certain products, by copying and pasting show command output. Search results show an illustration of your product with the serial number label location highlighted. Locate the serial number label on your product and record the information before placing a service call.
Submitting a Service Request
Using the online TAC Service Request Tool is the fastest way to open S3 and S4 service requests. (S3 and S4 service requests are those in which your network is minimally impaired or for which you require product information.) After you describe your situation, the TAC Service Request Tool provides recommended solutions. If your issue is not resolved using the recommended resources, your service request is assigned to a Cisco TAC engineer. The TAC Service Request Tool is located at this URL:
For S1 or S2 service requests or if you do not have Internet access, contact the Cisco TAC by telephone. (S1 or S2 service requests are those in which your production network is down or severely degraded.) Cisco TAC engineers are assigned immediately to S1 and S2 service requests to help keep your business operations running smoothly.
To open a service request by telephone, use one of the following numbers:
Asia-Pacific: +61 2 8446 7411 (Australia: 1 800 805 227)
EMEA: +32 2 704 55 55
USA: 1 800 553-2447
For a complete list of Cisco TAC contacts, go to this URL:
Definitions of Service Request Severity
To ensure that all service requests are reported in a standard format, Cisco has established severity definitions.
Severity 1 (S1)—Your network is "down," or there is a critical impact to your business operations. You and Cisco will commit all necessary resources around the clock to resolve the situation.
Severity 2 (S2)—Operation of an existing network is severely degraded, or significant aspects of your business operation are negatively affected by inadequate performance of Cisco products. You and Cisco will commit full-time resources during normal business hours to resolve the situation.
Severity 3 (S3)—Operational performance of your network is impaired, but most business operations remain functional. You and Cisco will commit resources during normal business hours to restore service to satisfactory levels.
Severity 4 (S4)—You require information or assistance with Cisco product capabilities, installation, or configuration. There is little or no effect on your business operations.
Obtaining Additional Publications and Information
Information about Cisco products, technologies, and network solutions is available from various online and printed sources.
•Cisco Marketplace provides a variety of Cisco books, reference guides, and logo merchandise. Visit Cisco Marketplace, the company store, at this URL:
•Cisco Press publishes a wide range of general networking, training and certification titles. Both new and experienced users will benefit from these publications. For current Cisco Press titles and other information, go to Cisco Press at this URL:
•Packet magazine is the Cisco Systems technical user magazine for maximizing Internet and networking investments. Each quarter, Packet delivers coverage of the latest industry trends, technology breakthroughs, and Cisco products and solutions, as well as network deployment and troubleshooting tips, configuration examples, customer case studies, certification and training information, and links to scores of in-depth online resources. You can access Packet magazine at this URL:
•iQ Magazine is the quarterly publication from Cisco Systems designed to help growing companies learn how they can use technology to increase revenue, streamline their business, and expand services. The publication identifies the challenges facing these companies and the technologies to help solve them, using real-world case studies and business strategies to help readers make sound technology investment decisions. You can access iQ Magazine at this URL:
•Internet Protocol Journal is a quarterly journal published by Cisco Systems for engineering professionals involved in designing, developing, and operating public and private internets and intranets. You can access the Internet Protocol Journal at this URL:
•World-class networking training is available from Cisco. You can view current offerings at this URL:
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