For those of us that only need a small handful of these receptionist phones (for me it is 2), it should not be nearly as much of a problem, correct? For example I only need 2 phones with 60 (well, I can get 54 atm, but would like to expand even more). Assuming everybody picked up their phone at the same time that would only be 180 (60 * 2, plus I am assuming some message to the phone that was picked up) messages. I can't imagine putting a sidecar on every single phone. If average joe really wants to know if somebody is on the phone they can log into a web page that will tell them the status of a phone.

Daniel - Good to hear that people from the manufacturing companies traffic these lists!

On Mar 28, 2006, at 6:29 PM, Christian Stredicke wrote:

Well the problem with the sidecar is simple. Just try to light all
lights three times within one second. If you have 50 keys there is
already hell breaking loose. If you cascade side cars and say have 100
LED, this is a real Xmas tree. The CPU drowns in XML notifications. We
already had trouble, and we don't want to double it at this time. Good
work, IETF.

BTW this is not only a problem if the phone. If the PBX has to supply 50 phones with 50 LED and e.g. they are going off hook at the same time, we
are talking about a burst of 50 * 50 = 2500 messages which will have
some impact of the PBX CPU as well.

We need to do something about this first before we can start having 100
or 150 LED on a device.

Christian - yes I am from snom.

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