I am running the 1.0 version on vmware and to eliminate choppy sound I installed kernel-vm-2.6.18-53.1.4.el5 and kernel-vm-devel-2.6.18-53.1.4.el5. When I choose this kernel at start up I have to rebuild the zaptel.
I will check the kernel-devel package as you suggested.
I have exactly the same problem. I rebuilt the CentOS kernal as I have Elastix running in VMWare and calls were distorted. This has fixed the call quality but Zaptel no longer loads. Apparently rebuilding Zaptel should fix this problem: http://pbxinaflash.com/forum/showthread ... =66&page=3
Running the Xen version does indeed fix the sound problem without braking anything else. Still trying to get it running with the VMWare version of the kernel though as I assume it has some performance benefits.
I am running a few versions of Elastix from VirtualBox on Windows. Although the standard kernel gave us accelerated recordings on some versions of Elastix, I think this may be resolved with the VMware kernel which so far, seems perfectly happy with Virtualbox.
There is however an error produced at start up saying that Zaptel does not load, and I would really like to know how to rebuild Zaptel as there seems to be no documentation here relating to that. Can I ignore the Zap errors if I have no such hardware?
CentOS is looking for /dev/zap at start up and it seems to not exist.