Method and Apparatus for Load Balancing in Network Based Telephony Based On Call Length

摘要

Techniques are disclosed for load balancing based on call length in networks such as those networks handling telephony applications. By way of example, one method for directing requests associated with calls to servers in a system comprised of a network routing calls between at least one caller and at least one receiver wherein the network comprises a load balancer sending requests to a plurality of servers comprises the following steps. A first request of a call is received. A server s1 is selected to receive the request based on an estimated duration of the call. Another method for directing requests associated with calls to servers in a system comprised of a network routing calls between at least one caller and at least one receiver wherein the network comprises a load balancer sending requests to a plurality of servers comprises the following steps. Information is maintained regarding load assigned to a plurality of servers. A first request of a call is received. A server s1 is selected to receive the request based on the maintained information. The request is sent to server s1. The information regarding load is updated based on an estimated length of the call.