IP telephony applications rely heavily on IP network infrastructure services to operate.  General-purpose servers and other ad-hoc methods of provisioning these services are costly, difficult to maintain, and do not provide the level of reliability that the average user in a telephony environment expects.  Furthermore, new requirements for security and mobility in next-generation IP telephony deployments rely even more on IP infrastructure services to operate.
Hardened appliance running multiple services in a highly reliable, centrally managed, and scalable platform provides the ideal way for an enterprise to ensure “network dial-tone” for …