1) Welcome to the party!
2) when you post, please post your entire configuration including (but not limited to) your installation method and vicidial version with build.
this IS a requirement for posting along with reading the stickies (at the top of each forum) and the manager's manual (available on EFLO.net, both free and paid versions)
You should also post: Asterisk version, telephony hardware (model number is helpful here), cluster information if you have one, and whether any other software is installed in the box. If your installation method is "from scratch" you must post your operating system and should also post the .iso version from which you installed your original operating system. If your installation is "Hosted" list the site name of the host.
If this is a "Cloud" or "Virtual" server, please note the technology involved along with the version of that techology (ie: VMware Server Version 2.0.2). If it is not, merely stating the Motherboard model # and CPU would be helpful.
Similar to This:
Vicibox X.X from .iso | Vicidial X.X.X-XXX Build XXXXXX-XXXX | Asterisk X.X.X | Single Server | No Digium/Sangoma Hardware | No Extra Software After Installation | Intel DG35EC | Core2Quad Q6600
3) This question pertains to "Asterisk" and not to "Vicidial". As such I highly recommend you check on Asterisk forums (which have a significantly higher user registration).
4) As g729 is not Free ... you SHOULD be asking this question to the people from whom you purchased your g729 license. We ordinarily charge $99 to install g729 which includes determining the proper binary and installation. But for the proper binary, you need to know 64 bit vs 32 bit among other things. When in doubt: Download them all and try them one at a time until one "works". Or read the documentation from the provider (this is ordinarily how we do it, as providers do have documentation and build their own binaries ... and they can vary widely!).