By Ramesh Kaza
Cisco IP Telephony: making plans, layout, Implementation, and Operation of the IP Telephony community, is a consultant for community engineers as they struggle through the deployment of a Cisco IP telephony (IPT) answer. even if an IPT approach brings a number of advantages to a company, knowing all of the elements of that approach is important for a profitable implementation. Engineers tasked with implementation should also do not forget that the structure they're fitting needs to be scalable sooner or later. The authors of this booklet, Ramesh Kaza and Salman Asadullah, have taken an method of tackle the questions that come to those engineers whereas making plans, designing, enforcing, and working the Cisco IPT ideas. The deployment technique has been divided into 4 levels: making plans, layout, Implementation, and Operation (PDIO). every one section offers particular information about the initiatives concerned and top practices for profitable implementation of the IPT answer.
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Extra info for Cisco IP telephony: planning, design, implementation, operation, and optimization
Differences Between Two Cisco SoftPhone Products Feature Cisco IP SoftPhone Cisco IP Communicator User interface PC application look and feel Cisco IP Phone 7970G look and feel Communication protocol with CallManager CTI SCCP Provisioning Requires creation of CTI port and user association Just like any other Cisco IP phone Call-control features Features are limited to the capability of CTI APIs All features supported in the 7970G Phone, such as multiple lines and access to Cisco IP Phone services, are supported As Table 1-7 indicates, Cisco IP SoftPhone uses CTI to communicate with CallManager.
Only one server is active at a time. Cisco Emergency Responder An IPT network provides fiexibility to move the IP phones from one location to another location without the involvement of an administrator. This is attractive to many organizations and network administrators because it reduces the cost. However, careful planning is required, which varies depending on the country where the telephony system is deployed and local government rules and regulations for routing emergency calls. In the United States and Canada, users dial 911 (in other countries, this number varies) to make emergency calls to get the services of police, ambulance, and fire personnel.
Redundancy is achieved in an IPT network by deploying the CallManagers in cluster configuration. To build the redundancy for Cisco Unity deployment, two Unity servers are deployed. Unlike CallManager, where the load can be shared on all the servers in the cluster, the Cisco Unity servers deployed in the failover model do not share the load. Only one server is active at a time. Cisco Emergency Responder An IPT network provides fiexibility to move the IP phones from one location to another location without the involvement of an administrator.
Cisco IP telephony: planning, design, implementation, operation, and optimization by Ramesh Kaza