booya wrote:
> I have Firmware version: 020810000000 / 041.00 and EEPROM version: 103.
> Now my phone is almost useless.
>
> Seems like the phone will fail to register after some time, resulting
> no calls can be put out nor calls can be received. Checking the asterisk
> logs seems to show that the phone does try to make the call, but when
> asterisk asks for authentication information, the phone just ignores,
> causing asterisk to continually retransmit the authentication request.
>
> Secondly, after some time, the phone will refuse any connection
> requests. It remains visible when pinged, but access to the web
> configuration page gets a connection refused. The phone will still be
> able to try to put out calls to asterisk, but the previous mentioned
> problem would have occurred before then.
>
> The only way to temporarily fix this is to unplug the Ethernet cable
> and replug it back in and the problem would be back after a few
> minutes.
>
> Finally, when the phone does work, audio is choppy. I can't determine
> the cause of this problem other than that different codecs were used to
> bridge the phone and the incoming call even though both of them have the
> same set of codecs. I tried using a softphone in place of the S450 and
> the audio has no problems.
>
> Anyone knows how I can fix this? Simens is not responding to any
> support emails and there is no way to downgrade the phone nor reflash
> the current version (in case its just a bad flash). I paid big bucks for
> this phone and now its nothing but paperweight.
>
>
> ------------------------------------------------------------------------
> View this thread: http://www.wirelessforums.org/uk-telecom-voip/siemens-s450ip-call-transfer-28930.html
> http://www.wirelessforums.org
>

My S450IP is running exactly the same firmware/EPROM versions with no
apparent problem so problem may not be due the phone? The only
difference perhaps is that I run mine under 3cx (Windows PBX) rather
than asterisk?