Pidginboard; VoIP applications

Hello,

I was wondering what your opinion is about creating a buddy board or a
new board (like the Leopardboard) which is suited to run a PBX or
other VoIP applications. The ARM (OMAP) application is powerful enough
to run an application like callweaver, freeswitch or asterisk with
ease. Compare this to the the http://astfin.org/ project... which runs
asterisk on a BF537. My idea would be to provide FXO and FXS
connectivity, RS232, Ethernet... using an OMAP-L138 and TLV320AIC22C,
etc... What are your thoughts?

Gerard

Hello,

I was wondering what your opinion is about creating a buddy board or a
new board (like the Leopardboard) which is suited to run a PBX or
other VoIP applications. The ARM (OMAP) application is powerful enough
to run an application like callweaver, freeswitch or asterisk with
ease. Compare this to the the http://astfin.org/ project... which runs
asterisk on a BF537. My idea would be to provide FXO and FXS
connectivity, RS232, Ethernet... using an OMAP-L138 and TLV320AIC22C,
etc... What are your thoughts?

I've heard some discussions of low-cost OMAP-L138 boards, especially
from Khasim. Perhaps it would be good to share your desired feature-
set on this thread and see how much overlap there is.

> Hello,
>
> I was wondering what your opinion is about creating a buddy board or a
> new board (like the Leopardboard) which is suited to run a PBX or
> other VoIP applications. The ARM (OMAP) application is powerful enough
> to run an application like callweaver, freeswitch or asterisk with
> ease. Compare this to the the http://astfin.org/ project... which runs
> asterisk on a BF537. My idea would be to provide FXO and FXS
> connectivity, RS232, Ethernet... using an OMAP-L138 and TLV320AIC22C,
> etc... What are your thoughts?

I've heard some discussions of low-cost OMAP-L138 boards, especially
from Khasim. Perhaps it would be good to share your desired feature-
set on this thread and see how much overlap there is.

Would it be easier to use the L138 or directly drop into a FXO/FXS with a SLIC
chip on the McBSP? Has anyone tried configuring the McBSP to sit on a TDM bus
to talk to a SLIC? Do the clocks and other signals line up with out needing
anything besides voltage xlation glue? At a first glance the McBSP signals
look very similar to what goes into a QSLIC except the QSLIC would have 4
channels and can have more chained in on the same bus whereas the typical
usage of the McBSP only has 2 channels.

How about using existing FXS and FXO USB adapters:

http://www.voip-info.org/wiki/view/Analog+Telephone+Adapters

Mark

How about using existing FXS and FXO USB adapters:

ATAs - Analog Telephone Adapters

Mark

> > Hello,
> >
> > I was wondering what your opinion is about creating a buddy board or a
> > new board (like the Leopardboard) which is suited to run a PBX or
> > other VoIP applications. The ARM (OMAP) application is powerful enough
> > to run an application like callweaver, freeswitch or asterisk with
> > ease. Compare this to the the http://astfin.org/ project... which runs
> > asterisk on a BF537. My idea would be to provide FXO and FXS
> > connectivity, RS232, Ethernet... using an OMAP-L138 and TLV320AIC22C,
> > etc... What are your thoughts?
>
> I've heard some discussions of low-cost OMAP-L138 boards, especially
> from Khasim. Perhaps it would be good to share your desired feature-
> set on this thread and see how much overlap there is.

The OMAP L 138 Open Platform is in assembly stage. We can confirm on
the availability only after validating the board and all peripherals.
I can confirm by end of next week.

It has RS 232 and Ethernet on board.

Would it be easier to use the L138 or directly drop into a FXO/FXS with a
SLIC
chip on the McBSP? Has anyone tried configuring the McBSP to sit on a TDM
bus
to talk to a SLIC? Do the clocks and other signals line up with out
needing
anything besides voltage xlation glue? At a first glance the McBSP signals
look very similar to what goes into a QSLIC except the QSLIC would have 4
channels and can have more chained in on the same bus whereas the typical
usage of the McBSP only has 2 channels.

I have worked on TMS320C6204 - 5 years back and have successfully
interfaced McBSP on TDM with Four SLICs, We were able to make a
Computer Telephony Interface Card (just like the QuickNet cards). It
worked great !!!

Regards,
Khasim