This notification email is intended to inform everyone in our company involved in the selection or ordering of networking gear for VoIP solutions.
As we know, our company has deployed many VoIP solutions. As time and the number of deployments has increased, our internal VoIP knowledgebase has incremented accordingly. Although the phone system brand per deployment may differ, the underlying networking equipment is often from the same manufacturer and in many cases, the same manufacturer model. Although in some respects debatable, several of the most problematic VoIP deployments include Kentrox networking equipment installed as part of the solution.
A common denominator in both point-to-point and VPN flavored VoIP installs that have been the most troublesome are Kentrox models Q2300 and Q2200. Although both units price very competitively, the gains achieved with the low upfront cost have been negated due to technical overhead applied in efforts solve poor voice-over-ip quality issues. More intangible but not to be ignored, is the cost to the company's reputation of delivering solid VoIP solutions. Although it's not a guaranty that another vendors equipment would have not resulted in similar issues, the uncertainty and doubt in future VoIP deployments arising from the Kentrox units having been involved in past problem deployments is certain.
It's recommended that Kentrox models Q2200 and Q2300 are no longer included in proposals for neither point-to-point or VPN VoIP solutions. They can still play a role as an inexpensive T1 CSU/DSU router/firewall for single ISP internet access but even for those solutions another vendors equipment, such as product offerings from Adtran or Cisco, may price equally as well and should be considered.