Dialing plans can become increasingly complex and unmanageable during voice system migrations. Typically, the existing PBX is used for call routing decisions during the introduction of VoIP and Unified Communications solutions. However, as more and more end-users are migrated to the new voice system, dialing plan management and PBX link capacity can be adversely impacted.

Directory-Based Call Routing feature will enable the VX Voice Exchange to make call routing decisions based on information stored in a customer's LDAP or Microsoft Active Directory-Based enterprise directory server. This new feature will enable the VX Voice Exchange to make call routing decisions based on information stored in a customer's LDAP or Microsoft Active Directory-based enterprise directory server.