[Asterisk-Users] Advantage of Cisco 7960 with 5.x firmware

[Matthew Hardeman]

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: asterisk-users-admin at lists.digium.com
[mailto:asterisk-users-admin at lists.digium.com] On Behalf Of Brian West
Sent: Tuesday, September 23, 2003 10:23 AM
To: asterisk-users at lists.digium.com
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
> Asterisk-Users at lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-users
>
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