Gordon Henderson wrote:[color=blue]
> Interesting issues - thanks. I always use a PBX, so lack of LCR, dialplan,
> etc. isn't an issue. Shame you need to flash it immediately too, but I
> can live with that.[/color]
It's not an issue, it's easy and painlessly done through the handset -
no need for a PC on the same network.
And as every SNOM phone you can provision them through a properly hand
crafted text file.
[color=blue][color=green]
>> Personally I've never had problems with Siemens Gigaset phones
>> (specifically the S450IP). Especially the last firmware release is
>> pretty stable and reliable.[/color]
>
> What I need isn't "pretty stable", it's "rock solid". Right now, I
> have one company with 6 Siemens C450IP's - all flashed to the latest
> firmware - 3 in the main office, 3 in 3 remote shops. The shop ones use
> both their analogue and VoIP ports, the main office, VoIP only. All of
> them are fairly busy, especially the remote shop ones, although mostly
> with analogue calls. What I see is about once a week, maybe more, the
> phones stop working on the VoIP side. The analogue side is fine.[/color]
If this happens regularly with registrations to an Asterisk-based
server, probably the setup is incorrect.
1. Do you have all the necessary ports forwarding in place on the router
from the public IP to to the phone private IP (5060-5070 and 5004-5010
UDP)? If not, set them up.
2. Is the phone base onto a static IP (highly recommended)? If not,
assign it a private static IP in the range of the router BUT NOT IN THE
ROUTER DHCP RANGE.
3. What method do you use to do NAT traversal, STUN or Outbound Proxy?
Asterisk isn't happy to be the outbound proxy, so you need a STUN server
to let the Siemens know its own public IP and properly populate the SIP
REGISTER message with the public IP, not its own internal IP.
4. Do you have - by any chance - the "qualify=yes" parameter in the
extension definition? Take it off.
5. Look at the full Asterisk log (/var/log/asterisk/full) to see if you
have any strange activity from the phones (look for 45x codes).

Power cycling the base will dramatically shorten the lifespan of the
PSU. They have a high mortality rate when they cool off and warm up
again repeatedly.

Caveat emptor: I never dealt with C450IPs, we use S450IPs. The firmware
and the base unit should be the same tho...

HTH

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