I've found there are some bugs they don't list (bugs of great severity) that are fixed in the latest release that can cause trouble in certain environments. The phone's handling of ICMP redirects in a multihomed Ethernet environment (two separate, exclusive subnets running on a single segment) is very flaky, and frequently will result in the phone crashing and rebooting. The latest release seems to mitigate this in most instances, though I actually found the best solution (sadly) was to prevent my gateway from sending ICMP redirects to the Cisco phones.
The 5.x+ stuff is annoying, due to the whole code-signing issue. It's kind of anti-open-architecture... On the other hand, there aren't any non-Cisco firmware builds for these phones floating around out there... Would you even want one? Cisco implemented the code signing enforcement as a response to a security analysis of the phones that pointed to the ability to make the phone run arbitrary code via TFTP being a security risk. That risk is no longer. I have mixed feelings about it, but have no regrets in having deployed the 5.x solutions in my business. Matt Hardeman PaperSoft -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Brian West Sent: Tuesday, September 23, 2003 10:23 AM To: [EMAIL PROTECTED] Subject: Re: [Asterisk-Users] Advantage of Cisco 7960 with 5.x firmware their really isn't much fixed between 4.4 and the 5.x stuff but at the time thats all I had. So I put that on the phone. So far everything works like a champ. Not one problem. 4.4 http://www.cisco.com/en/US/products/sw/voicesw/ps2156/prod_release_note0 9186a008016096f.html#63943 Resolved Caveats.Release 5.0 No resolved caveats specific to Cisco IP Phone 7940/7960 Release 5.0 require documentation in these release notes. Resolved Caveats.Release 5.1 All caveats listed in this section are resolved in Cisco IP Phone 7940/7960 Release 5.1. This section lists only severity 1 and 2 caveats and select severity 3 caveats CSCdz59328: SIPPhone: The UI responsiveness slow, fast fingers cause digit drop CSCdz77783: SIPPhone: Clipping of voice in 7960 SIP phone CSCea83100: SIP: Dialing # does not work correctly if dialplan is empty CSCea85697: Phone may fail to reset when an Exception occurs CSCea93250: SIPPhone: Dialing # does not always work if default rule missing CSCeb27906: SIPPhone: Null To-tag in REFER causes transfer fail (race condition) CSCeb29575: SIPPhone: NOTIFY Event header shortform is not supported (o:) Resolved Caveats.Release 5.2 All caveats listed in this section are resolved in Cisco IP Phone 7940/7960 Release 5.2. This section lists only severity 1 and 2 caveats and select severity 3 caveats CSCeb41335: DSP mismatch with upgrade failure CSCeb44769: Phone removes dots in the IP address when sending ACK CSCeb46028: 79x0 Memory leak issues related to DNS query failures CSCeb75975: Phone crashes upon any menu exit Resolved Caveats.Release 5.3 All caveats listed in this section are resolved in Cisco IP Phone 7940/7960 Release 5.3. This section lists only severity 1 and 2 caveats and select severity 3 caveats CSCeb85936: SIP phone doesnt use the medium level contact field Hope that helps. bkw On Tue, 23 Sep 2003, Peter Pauly wrote: > I'm currently running firmware version 3.2 on my > Cisco 7960. I've seen on the list that several > people are running the 5.x latest versions. > > I've avoided going to higher firmware versions > because I'm worried about potential problems > or issues with the encryption mechanism used > in the later firmware versions. (Once you > go to an encrypted firmware version, you can't > go back, right?) > > For those of you who have gone to the newer > firmware, what features or benefits have > you seen by going with the newer firmware? > _______________________________________________ > Asterisk-Users mailing list > [EMAIL PROTECTED] > http://lists.digium.com/mailman/listinfo/asterisk-users > _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
