Hello,
Perhaps it is of interest to the list to know that Aculab now supports a
channel driver for its Prosody line of cards. Prosody cards among
others, support many SS7 variants.
The channel driver and accompanying software for the cards are given for
free when you buy the card.
Information can be found here:
http://www.aculab.com/products/asterisk/index.htm
I asked at Aculab for pricing and it turns out that for 2 E1s per card
the pricing is a bit better than the currently available driver from
Markku Korpi. For 4 E1s the pricing from Aculab clearly becomes better.
Plus, the Prosody cards come with DSP resources for fax, DTMF detection,
recording, playback etc, in case someone does not want to put the burden
of these tasks on the CPU.
For 1 E1 only, even when you add the cost of acquiring the Digium card,
the cost of Markku Korpi's driver is lower.
Of course this information concerns only the list prices, without any
volume discounts, etc, also without taking into account the
maintenance/support fees, etc
As we know, there are no plans (yet) to provide channel drivers for
other Aculab cards which have only telephony interfaces and no DSP's,
which would lower the buying cost of the cards significantly.
Best regards,
Vlasis Hatzistavrou.
Derek Conniffe wrote:
Hi Michael,
To me the reason I'd really like SS7 over PRI ISDN is that I would
really like to get the CPC data on incoming calls which PRI ISDN
cannot do and thats it in total. Currently the only choice is Markku
Korpi's commercial SS7 driver.
So my question to the list.
If there is such a huge need for this product why has the code not
been developed?
I think not many people need SS7 - maybe its not big/available in the
US? Also normal businesses will get by fine with PRI ISDN (they don't
want/need the CPC switch data).
Is it that the developer realizeed that they can sell it for
lots o money
Markku Korpi's driver is not cheap for sure
Best of luck! When you are finished I you might want lots of money
for your non-opensource SS7 software too! :)
Derek
Michael Blood wrote:
We are interested in starting an in house development of an SS7
Interface for our asterisk switches.
We only really have to setup a few basic messaging sets in order to
make Asterisk operate as a SSP (I think).
It seems that FootNote SS7 development is stalled (at least I have
never seen any code come from Race) also openSS7 doesn't really have
anything compatible with asterisk.
We plan to start the planning portion in the next few days. We will
only support a minimal messaging set that is specific to our needs
for SSPs.
Is there any technical advice for direction to go or issues to work out?
I wanted to mention that we have decided to do this in house because
the open source solutions are not there yet and they seem to want to
be everything to everyone. We don't need that. The openss7 product
seems to address TOO many features. We dont plan to connect to an
SCP node, we can survive without LNP and Database Lookups.
So my question to the list.
If there is such a huge need for this product why has the code
not been developed?
Is it that the developer realizeed that they can sell it for
lots o money
Is it that the message sets are two big and complex? Maybe
the developer wants to be able to support way more messages than we
need.
I have not yet decided what we will be doing with the
once we have completed things but if we should decided to open source
it we will want to make sure that the code is written the best way
possible for asterisk.
Would Asterisk-Dev be an appropriate place to post questions about
the best practice ways to develop the application.
Are there any caveats or gotchas that you may have experienced or
heard of to the development of this subset of SS7 functionality?
Thanks
Michael Blood
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