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Cisco Cucm 12.5 Release Notes3/20/2021
Also, many of the following are not supported in CUCM 11.5 either.As of Cisco Unified Communications ManagerFirmware Release 12.0, the following phones are not supported: 1-Cisco Unified IP Phone 7970G Datasheet 2-Cisco Unified IP Phone 7971G-GE Datasheet 3-Cisco Unified Wireless IP Phone 7921G Datasheet 4-Cisco IP Phone 12 SP 5-Cisco IP Phone 30 VIP 6-Cisco Unified IP Phone 7902 Datasheet 7-Cisco Unified IP Phone 7905 Datasheet 8-Cisco Unified IP Phone 7910 Datasheet 9-Cisco Unified IP Phone 7910 SW Datasheet 10-Cisco Unified IP Phone 7912 Datasheet 11-Cisco Unified Wireless IP Phone 7920 Datasheet 12-Cisco Unified IP Conference Station 7935 Datasheet Why deprecated The legacy phone models are deprecated for the following reasons: 1-Securitysince legacy phone models are not updated with critical software fixes, we have limited ability to protect customers when security issues arise.
New feature implementationlegacy phone usage slows down implementation of newer features. ![]() Cisco Cucm 12.5 Release Notes Registration Will BeWhat will happen If you are running any of these phone models, after you upgrade and switch over to the new release, registration will be blocked on the phone. If the phone remains powered on, the phone will make repeated registration attempts, which will create unnecessary network traffic as well as a load on the Cisco CallManager service. Cisco Cucm 12.5 Release Notes Free No CreditAuthor Recent Posts Reza Mousavi Serial Entrepreneur, Founder CEO at PBXDom, Software Architect, Frequent reader, Fan of adventure travel Latest posts by Reza Mousavi ( see all ) How to connect Power BI to any Phone System - 2020-08-17 Future of Call Analytics and Monitoring is here - 2020-05-25 How to Create a Dashboard for FreePBX in 2 Minutes - 2019-12-12 Share this article on social networks: Related Posts What is Cisco Unified Contact Center Express (UCCX) Best Cisco Call Manager Training of 2019 Video Tutorials: How to Configure Ports in Cisco Call Manager Tags: cisco, Cisco call manager, Cisco call manager 12.0, Cisco Unified Communications Manager, CUCM, CUCM 12, deprecated phones, Guess less and know more Try PBXDOM for 14 days free no credit card required. ![]() All Rights Reserved Term of Service Privacy Policy Contact Us. The only things you lose are the media encryption and the ability to ever upgrade to Restricted version. On the surface, without any research, you might be tempted to jump into the Unrestricted version. After all, no restrictions is usually a good thing, right In this case, thats not what you want to do. In fact, it could cause more problems than you think it might solve. Cisco Cucm 12.5 Release Notes Code Is InWhy would the government care about exporting a phone system The offending piece of code is in fact the media and signaling encryption that CUCM can provide in a secure RTP (SRTP) implementation. ![]() Initially developed heavily in World War II, the government needed to be sure to regulate the use of encryption (and cryptography) afterwards. Normally, technology export is something that is controlled by the U.S. Department of Commerce. However, since almost all applications for cryptography were military in nature it was classified as a munition by the military and therefore subject to regulation via the State Department. They decreed that no strong encryption software would be available to be exported out of the country without a hearing and investigation. This usually meant that companies created international versions that contained the maximum strength encryption key that could be exported without a hearing 40 bits. This affected many programs in the early days of the Internet Age, such as Internet Explorer, Netscape Navigator, and even Windows itself. In fact, the order said that software was no longer to be treated as technology for the purposes of determining restrictions for export. The Department of Commerce decided in 2000 to create new rules governing the export of strong encryption. These restrictions were very permissive and have allowed encryption technology to flourish all over the world. There are still a few countries on the Export Restriction list, such as those that are classified as terrorist states or rogue states as classified by the U.S. Government. These countries may not be the recipient of strong encryption software. In addition, even those countries that can receive such software are subject to inspection at any time by the U.S. Department of Commerce to ensure that the software is being used in line with the originally licensed purpose. When you think of how many companies today have a multi-national presence, this could be a nightmare for regulatory compliance. These Export Unrestricted versions are developed in parallel with other CUCM versions so all users can have the same functionality no matter their location. CUCM Unrestricted versions do have a price when you install them, however. Once you have upgraded a cluster to an Unrestricted version of CUCM, you can never go back to a Restricted (High Encryption) version. You cant migrate or insert any Restricted servers into the cluster. The only way to go back is to blow everything away and reload from scratch. Hence the reason you want to be very careful before you install the software. Unless you find yourself in a scenario where you need to install CUCM in a country that has Department of Commerce export restrictions or has some sort of import restriction on software (Russia is specifically called out in the Cisco release notes), you should stay on the Restricted version of CUCM.
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