[Asterisk-Users] USB handset wanted

[Ondrej Valousek]

Matt,

You have forgotten the ringer.
In fact, I don't care that much about LCD & buttons. I want to use it 
with something like X-lite.
Initially, I used machine builtin soundcard with X-Lite (worked well) 
but then I realized that if the phone is supposed to compete with the 
standard analog phone, it must have a working ringer.

 From what I see I suppose that every handset with builtin ringer must 
be recongized to the OS as 2 USB soundcards - one for speaker/mike, the 
second as a ringer.
But I could be wrong.

Our company is completely linux based and If I manage, it will have a 
linux based PBX as well (nothing against Windows, though).
Thanks,

Ondrej

Matt Riddell wrote:

> Ondrej Valousek wrote:
>
>> Hello all asterisk users!
>>
>> Question: Does anybody know about any good USB handset that would 
>> understand SIP and Asterisk and will run with Linux?
>
>
> USB Phones don't understand anything.  They are effectively four 
> components:
>
>     a) Microphone
>     b) Speaker
>     c) LCD Display
>     d) Buttons
>
> You have to design everything on the client side.  If you don't 
> understand USB extensively this would be rater a difficult task.
>
>> I have found tons of them, but they are mainly only supported in 
>> Windows environment.
>
>
> Because people have written drivers for them (often the manufacturer)
>
>> I would like to set up new phone system in our company that would be 
>> based on asterisk acting as PBX and SIP.
>
>
> With the clients or the server running Linux?
>
>> If you have any suggestions, please let me know. Any help would be much 
>
>
> Well, it's definitely doable, I have written 2 stacks for usb phones, 
> although writing it raw (just via usb access) in Linux would be a 
> considerable undertaking.
>
> I would recommend that you:
>
> 1) Find a phone where the usb audio device is recognised in Linux, and 
> then move towards controlling the LCD and buttons.  If you're lucky, 
> the LCD will have something like an HD44870 chip controlling it, but 
> bear in mind you're obviously going to need to open it up to check the 
> chip.
>
> 2) Run a usb sniffer and see what you can get out of the keypad.
>
> 3) Write an IAXClient based softphone and include hardware control 
> with it.
>
> 4) Rinse, Repeat.
>
> :)
>