As enterprises continue to migrate from legacy phone systems to IP-based platforms, IT leaders are commonly taking on new responsibilities for telecom services. While network management expertise is essential to VoIP planning, traditional traffic engineering fundamentals are still necessary when it comes to estimating the number of required phone lines for a facility. IT leaders should leverage proven traffic analysis methods to determine the optimal number of voice trunks to provision.
Understanding Trunking Options
Despite the continued shift towards on-premise IP Telephony, service availability and performance requirements still dictate conventional connectivity to the Public Switched Telephone Network (PSTN) for the majority of enterprises. Enterprises today have the following interface options when it comes to PSTN connectivity: