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

[Kelly Murphy]

I'm having a similar issue to this in that the USB ports on the system are
ohci based, not uhci, therefore ztdummy will not work.  My system is also
running the SMP kernel so zaprtc will not work. 

To me it looks like the only good solution is a hardware timer, even if it's
as simple as an x100p card.

Kelly

PS. If you read Jon's message again, the answer given is not acceptable for
the question asked.  He wrote that he "does not" have USB in his server,
therefore ztdummy will not work.

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Kristian
Kielhofner
Sent: Tuesday, November 30, 2004 9:15 AM
To: jb at v2tel.com; Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] Zaprtc seems unsupported, Asterisk in
productionenvironment without Digium cards

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
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