[Asterisk-Users] USB handset wanted

[Ondrej Valousek]

Question:
Did they behave like 1 audio device (for the speaker and mike) or 2 
audiodevices (creating /dev/dsp1, /dev/dsp2) with the second one for the 
ringer?
That's what I am unable to find out...
Thanks a lot for the tips....

Ondrej

Bates, Curtis wrote:

>I have been playing with an MV100 from mvox (www.mvox.com) and a Phoenix Audio Duet (www.phnxaudio.com).  Both are USB Audio Devices.  With X-Lite, I use them like a speakerphone.  I had X-Lite play the ring to the audio device.  I also used X-Lite's interface for all interaction with it.  
>
>I like the MV100 for my personal use best.  It is small and cheap ($40 at Radio Shack), it also had better echo cancellation.
>
>-----Original Message-----
>From: Ondrej Valousek [mailto:webserv at s3group.cz]
>Sent: Thursday, August 11, 2005 2:30 AM
>To: Asterisk Users Mailing List - Non-Commercial Discussion
>Subject: Re: [Asterisk-Users] USB handset wanted
>
>
>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.
>>
>>:)
>>
>>    
>>
>
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