[Asterisk-Users] Zaprtc seems unsupported, Asterisk in production environment without Digium cards

[Kristian Kielhofner]

Jon Brüel wrote:
> I feel there is some unclarity about the need for a timer in Asterisk. As
> Asterisk moves into production environments, this needs to be sorted out.
> 
> I'm setting up an Asterisk in a production environment with no Digium cards
> at all. It is planned to be used as a clean SIP hosted PABX, where we
> connect to the PSTN via gateways with proper echo cancellation. There is no
> USB driver on the card. Running Linux 2.6
> 
>>From some of the documents, I understand that some applications such as
> music on hold need a timer to function well and to function in order to
> achieve a good sound quality without high processor overhead.
> 
> In our test environment, zaprtc seems to be the right solution, but there
> are no places, where I can find a functioning and well tested timer for
> Asterisk on Linux 2.6 without having to go through diff-files and patch
> commands. And still, I can't get it to work. Much has been wiritten about
> this without any solutions. In any case, zaprtc does not seem to be built
> into Asterisk on the same level as e.g. the well tested applications.
> 
> My questions are:
> 
> 1) Is a timer such as zaprtc required?
> 2) Where can I acquire such a timer which will work with Linux 2.6?
> 3) Is it generally recommended to use Asterisk with at least one Digium
> card?
> 4) Will future versions of Asterisk be designed with a "build in" timing
> source?
> 

Use ztdummy. 
http://www.voip-info.org/tiki-index.php?page=Asterisk+timer+ztdummy

Check out "ztdummy with kernel 2.6"

--
Kristian Kielhofner