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Posted by Henry Cabot Henhouse III on December 21, 2005, 8:54 pm
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I read a review of the 3000, and it stated that as the 3000's only support
SIP, they have to register with a SIP server. The review also said that
configuring the dial plan was not for the average teleworker.
Do I have to use an outside SIP box to support these?
Thanks
Dave
"Wolfgang S. Rupprecht"
>
>> I'd like to extend an analog pbx station port from the office to my home.
>> It should work like an off prem extension, that is when I go off hook at
>> home, I should get pbx dial tone... when someone calls the extension, my
>> analog phone at home should ring .
>>
>> I know there are a lot of boxes out there that do this, but they are
>> hundreds if not thousands of bucks... I'm wondering if there's an
>> inexpensive solution (as I'm paying for this on my own).
>
> You can try a pair of Sipura SPA-3000's. One of the canonical
> examples they have in their FAQ's is how to set up the dialplan to do
> a "hotline". Eg. when you pick up one phone it automatically calls
> the some number. You can use that at the PBX-connected sipura to call
> your remote sipura whenever a call comes in. The remote sipura would
> be setup normally, with the pbx-connected one designated its outgoing
> sip gateway. For a bit of added simplicity I'd be sure to get two
> identical fxo/fxs units. You'll be screwing around with enough tricky
> settings in the units without having to worry about learning two
> totally different command sets. (There are probably other FXO/FXS
> units that can do the job too. I'm only familiar with the Sipura
> unit.)
>
> I have a SPA-3000 that I use to feed a POTS line into my asterisk
> (PBX). It works, but the reality of POTS lines is that it is
> impossible to feed them into a VOIP system without either causing a
> problem with reduced volume or if you crank the volume up, without
> introducing a bit of echo. If your pbx outputs a digital signal (PRI
> or BRI) this is probably the way you want to go. There are quite a
> few universities that have hooked their old PBX to either Cisco
> equipment or asterisk/SER and use SIP to connect things. In their
> case the goal is also to be able to connect to their PBX over the net,
> but only for the purpose of calling the users on their pbx. The
> setups should be similar enough that the configuration examples might
> prove useful.
>
> http://www.internet2.edu/sip.edu/
>
> -wolfgang
> --
> Wolfgang S. Rupprecht http://www.wsrcc.com/wolfgang/
> Direct SIP URL Dialing: http://www.wsrcc.com/wolfgang/phonedirectory.html
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