PbxJobs.com allows you to post and find jobs for free.
They are a New subsidiary site to http://www.pbxinfo.com a large
telecommunications information site. With over 1,000,000 hits a
month and a very active IT web community, Pbxinfo's targets audience
include telecom managers, technicians, engineers, end users and
college students who specialize in PBX, VOIP, CLEC/ILEC... and
more related fields...They deal with manufacturer such as: Nortel,
Cisco, Alcatel, Avaya, Siemens, Mitel, Nec and more...
http://www.pbxjobs.com is where you can post your openings for free.
Good luck on your job searches and candidate matching.