[Asterisk-Users] cisco phones problems

[Greg Oliver]

Whatever you have the voice vlan set it is what they operate on.  You
cannot provision that on the phone manually.  If they are small switches
(35xx, etc), then you need to configure without .1q trunking as those
switch imply it automatically.  For the larger switches 1.q trunking in
the config is required for phones to properly operate on dhcp and the
pcs attached to function properly.


> On 14:51, Fri 30 Sep 05, Edwin Lam wrote:
> > after much struggles. i've found out that if i ping the phone unit
> > from another computer constantly (couple pings every 5-10 sec)
> > the phone will operate fine. once i stopped the pings, the UNREACHABLE
> > message started to pop up and the drop calls problems starts. seems
> > like it's the firmware issue. does anyone uses Cisco SIP 7.3 (or 6.0,
> > i've tried downgraded it at some point) and have similar problems?
> > 
> > p.s. another piece of info: the phone units are set to a non default
> > vlan manually since we share the physical lan for both data & voice.
> 
> 
> Hi,
> 
> I had the same problem with only 1 Cisco 7905 every once in
> a while. All problems were solved as soon as I reverted the
> phones to SCCP and started using chan_sccp.so
> There's no lag anymore between the phones and asterisk.
> 
> So maybe this is an extra reason to suspect the firmware