[Asterisk-Users] 100 analog phones?? HOWTO?
Petr Grussmann
petrg at opavanet.cz
Tue May 25 20:30:12 MST 2004
I use about 300 IP phone combination Welltech LP101, welltech LP102
welltech3502-8, Cisco 7905 and Cisco 7960
Steven Critchfield wrote:
>On Tue, 2004-05-25 at 18:38, Jeff Gustafson wrote:
>
>
>>On Tue, 2004-05-25 at 14:06, Steven Critchfield wrote:
>>
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>>>> In theory Asterisk shouldn't have a lot of load. It's simply routing
>>>>calls (at 64kbit) and not converting them from one codec to another.
>>>>
>>>>
>>>While there is no codec, there is echo canceling and there is servicing
>>>the cards in a timely manner. So you need a pretty decent machine so it
>>>can handle the timing, but it won't be slammed.
>>>
>>>
>> I noticed that one of the Adtran boxes can have an optional echo
>>cancellation module. When I asked a VAR about this they said it was a
>>special order item that they never kept in stock. According to the
>>Adtran web site the module is designed for "packetized voice
>>applications." It sounds at though Asterisk wouldn't have to put cycles
>>to echo cancellation with a module like this.
>>
>>
>
>Unless you do VoIP on something with a larger delay than your LAN, there
>isn't much to worry about.
>
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>> I was also thinking that if I used more than one machine with TDMoE I
>>could potentially have better performance.
>>
>>
>
>I still doen't understand why someone would do TDMoE when IAX provides
>more flexibility.
>
>
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