Abstract: The use of virtual resources providing communication services is adjusted based on load. A determination is made, for a specific number range, whether the virtual telephone number mapping service instances dedicated to the specific number range are being underutilized. If the virtual telephone number mapping service instances dedicated to the specific number range are being underutilized, a virtual telephone number mapping service instance dedicated to the specific number range is selected for removal. A determination is also made, for the specific number range, whether a number of virtual telephone number mapping service instances dedicated to the specific number range is sufficient to handle requests for communication services. If the number of virtual telephone number mapping service instances dedicated to the specific number range is not sufficient to handle the requests, instantiation of a virtual telephone mapping instance is initiated.

Abstract: A determination is made whether to handle a request associated with a specific number range by a physical telephone number mapping service instance provisioned for handling the request for the specific number range or a virtual telephone number mapping service instance provisioned for handling the request for the specific number range. If it is determined that the request should be handled by the physical telephone number mapping service instance, forwarding of the request from the physical telephone number mapping service instance to the virtual telephone number mapping service instance is prevented. If it is determined that the request should be handled by the virtual telephone number mapping service instance, forwarding of the request from the virtual telephone number mapping service instance to the physical telephone number mapping service instance is prevented.

Abstract: A determination is made whether to handle a request associated with a specific number range by a physical telephone number mapping service instance provisioned for handling the request for the specific number range or a virtual telephone number mapping service instance provisioned for handling the request for the specific number range. If it is determined that the request should be handled by the physical telephone number mapping service instance, forwarding of the request from the physical telephone number mapping service instance to the virtual telephone number mapping service instance is prevented. If it is determined that the request should be handled by the virtual telephone number mapping service instance, forwarding of the request from the virtual telephone number mapping service instance to the physical telephone number mapping service instance is prevented.

Abstract: A determination is made whether to handle a request associated with a specific number range by a physical telephone number mapping service instance provisioned for handling the request for the specific number range or a virtual telephone number mapping service instance provisioned for handling the request for the specific number range. If it is determined that the request should be handled by the physical telephone number mapping service instance, forwarding of the request from the physical telephone number mapping service instance to the virtual telephone number mapping service instance is prevented. If it is determined that the request should be handled by the virtual telephone number mapping service instance, forwarding of the request from the virtual telephone number mapping service instance to the physical telephone number mapping service instance is prevented.

Abstract: The use of virtual resources providing communication services is adjusted based on load. A determination is made, for a specific number range, whether the virtual telephone number mapping service instances dedicated to the specific number range are being underutilized. If the virtual telephone number mapping service instances dedicated to the specific number range are being underutilized, a virtual telephone number mapping service instance dedicated to the specific number range is selected for removal. A determination is also made, for the specific number range, whether a number of virtual telephone number mapping service instances dedicated to the specific number range is sufficient to handle requests for communication services. If the number of virtual telephone number mapping service instances dedicated to the specific number range is not sufficient to handle the requests, instantiation of a virtual telephone mapping instance is initiated.

Abstract: The use of virtual resources providing communication services is adjusted based on load. A determination is made, for a specific number range, whether the virtual telephone number mapping service instances dedicated to the specific number range are being underutilized. If the virtual telephone number mapping service instances dedicated to the specific number range are being underutilized, a virtual telephone number mapping service instance dedicated to the specific number range is selected for removal. A determination is also made, for the specific number range, whether a number of virtual telephone number mapping service instances dedicated to the specific number range is sufficient to handle requests for communication services. If the number of virtual telephone number mapping service instances dedicated to the specific number range is not sufficient to handle the requests, instantiation of a virtual telephone mapping instance is initiated.

Abstract: A determination is made whether to forward a request for communication services associated with a specific number range from a physical telephone number mapping service server to a virtual telephone number mapping service server. Responsive to determining to forward the request, a determination is made whether a virtual telephone number mapping service instance has been provisioned to handle requests associated with the specific number range.

Abstract: Virtualization of a physical telephone number mapping service is provided. An amount of memory needed for handling requests from users of a physical telephone number mapping service provided by a communication network is determined. A listing of different virtual machine flavors available for instantiation is searched. Each virtual machine flavor has a different respective memory capacity. A determination is made whether there is a virtual machine flavor available for instantiation that has a memory capacity adequate to handle the requests. Responsive to determining that there is a virtual machine flavor available for instantiation that has the memory capacity adequate to handle the requests, instantiation of the virtual machine flavor is initiated for handling the requests.

Abstract: The use of virtual resources providing communication services is adjusted based on load. A determination is made, for a specific number range, whether the virtual telephone number mapping service instances dedicated to the specific number range are being. If the virtual telephone number mapping service instances dedicated to the specific number range are being underutilized, a virtual telephone number mapping service instance dedicated to the specific number range is selected for removal. A determination is also made, for the specific number range, whether a number of virtual telephone number mapping service instances dedicated to the specific number range is sufficient to handle requests for communication services. If the number of virtual telephone number mapping service instances dedicated to the specific number range is not sufficient to handle the requests, instantiation of a virtual telephone mapping instance is initiated.

Abstract: Virtualization of a physical telephone number mapping service is provided. An amount of memory needed for handling requests from users of a physical telephone number mapping service provided by a communication network is determined. A listing of different virtual machine flavors available for instantiation is searched. Each virtual machine flavor has a different respective memory capacity. A determination is made whether there is a virtual machine flavor available for instantiation that has a memory capacity adequate to handle the requests. Responsive to determining that there is a virtual machine flavor available for instantiation that has the memory capacity adequate to handle the requests, instantiation of the virtual machine flavor is initiated for handling the requests.

Abstract: A determination is made whether to forward a request for communication services associated with a specific number range from a physical telephone number mapping service server to a virtual telephone number mapping service server. Responsive to determining to forward the request, a determination is made whether a virtual telephone number mapping service instance has been provisioned to handle requests associated with the specific number range.

Abstract: A determination is made whether to handle a request associated with a specific number range by a physical telephone number mapping service instance provisioned for handling the request for the specific number range or a virtual telephone number mapping service instance provisioned for handling the request for the specific number range. If it is determined that the request should be handled by the physical telephone number mapping service instance, forwarding of the request from the physical telephone number mapping service instance to the virtual telephone number mapping service instance is prevented. If it is determined that the request should be handled by the virtual telephone number mapping service instance, forwarding of the request from the virtual telephone number mapping service instance to the physical telephone number mapping service instance is prevented.

Abstract: An apparatus and method are disclosed for exchanging messages between an email client and a unified messaging system. An apparatus that incorporates teachings of the present disclosure may include, for example, a unified messaging system (UMS) (102) having a controller (108) that manages operations of a communications interface (104) that communicates with communication devices in a communication system (100). The controller can be programmed to receive (304) from an email client operating in a select one of the communication devices an identification, validate (308) the identification according to subscriber information in a directory, establish (312) a secure communications link with the email client upon validating the identification, identify (314) a message server from the subscriber information, authenticate (316) the email client at the message server, and enable (318) communications between the email client and the message server over the secure communications link.