asterisk users - Jan 2010 - fax over IP - http/ftp-provisioning - intercom

Dear members of the list,

a customer of mine has some questions and I would like to pose some of
them further to you guys.

What is the situation with Asterisk and fax over IP ? Can Asterisk
receive a fax over a POTS or ISDN line ?? Do I then need a Digium
TDM-card and an FXO-module or a T38-gateway ?

What phones should I use to automatically configure them from a central
place via HTTP or FTP ? I know Polycom-phones offer this option.

How can I implement intercom functionality ? Which phones have
auto-answer ? And how do I implement this in the Asterisk dialplan ??


I'm used to working with Asterisk 1.4. I hope the above is possible in
an 1.4 environment.

Thank you for your feedback.

Jonas.
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On 01/23/2010 09:11 AM, jonas kellens wrote:
> Dear members of the list,
>
> a customer of mine has some questions and I would like to pose some of
> them further to you guys.
>
> What is the situation with Asterisk and fax over IP ? Can Asterisk
> receive a fax over a POTS or ISDN line ?? Do I then need a Digium
> TDM-card and an FXO-module or a T38-gateway ?
Despite what anyone may say about Fax over IP allegedly works for them, 
save yourself the trouble and make sure you take the POTS and ISDN 
approach.
> What phones should I use to automatically configure them from a central
> place via HTTP or FTP ? I know Polycom-phones offer this option.
Most major phone vendors offer provisioning of this nature.
> How can I implement intercom functionality ? Which phones have
> auto-answer ? And how do I implement this in the Asterisk dialplan ??
Polycom supports this, and I am quite sure Snom does too.  Perhaps some 
others.

As far as how to implement it, that is manufacturer-specific.  Look on 
voip-info.org for "Polycom" and "paging" if you want the
Polycom-centric
answer.  For other phones, it will be different.

-- 
Alex Balashov - Principal
Evariste Systems LLC

Tel    : +1 678-954-0670
Direct : +1 678-954-0671
Web    : http://www.evaristesys.com/

On Sat, 2010-01-23 at 21:19 -0500, Alex Balashov wrote:
> > What is the situation with Asterisk and fax over IP ? Can Asterisk
> > receive a fax over a POTS or ISDN line ?? Do I then need a Digium
> > TDM-card and an FXO-module or a T38-gateway ?
> 
> Despite what anyone may say about Fax over IP allegedly works for them, 
> save yourself the trouble and make sure you take the POTS and ISDN 
> approach.

If I keep the POTS-line or the ISDN-line, can Asterisk then transform an
incoming fax to an email with pdf or tiff attachment ??
And the other way around, can an email to the Asterisk-server be
transformed to an analogue fax ??

Jonas.
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