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Hi:<br />
I need help in resolving the following question:<br />
I have a company which uses Voip which has a server with all the company user’s registered names. That server is used to set up each call by giving each participant the IP address of the other party. The actual phone calls are peer to peer encrypted links ( which do not go through any of &nbsp;my servers, and the keys do not come from the company but, instead it comes from a Diffie Helman exchange).<br />
My company is required to comply with the Communications Assistance for &nbsp;Law Enforcement &nbsp;Act (CALEA) for all calls to and from USA phones.<br />
A) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;How can my company determine if a phone call is being made in the USA?<br />
B) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Where would the CALEA have to put the hardware or software to eavesdrop on the calls?<br />
<br />
<br />

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Hi:
I need help in resolving the following question:
I have a company which uses Voip which has a server with all the company user’s registered names. That server is used to set up each call by giving each participant the IP address of the other party. The actual phone calls are peer to peer encrypted links ( which do not go through any of  my servers, and the keys do not come from the company but, instead it comes from a Diffie Helman exchange).
My company is required to comply with the Communications Assistance for  Law Enforcement  Act (CALEA) for all calls to and from USA phones.
A)	How can my company determine if a phone call is being made in the USA?
B)	Where would the CALEA have to put the hardware or software to eavesdrop on the calls?




Voip and Communications Assistance for  Law Enforcement  Act

Network design and methodology, also known as network architecture, is the design of a communication network. It is a framework for the specification of a network's physical components and their functional organization and configuration, its operational principles and procedures, as well as data formats used in its operation. In telecommunication, the specification of a network architecture may also include a detailed description of products and services delivered via a communications network, as well as detailed rate and billing structures under which services are compensated.

Network Architecture

Network Operations includes asset management, help-desk supervision, security and user policies, infrastructure administration and anything else that affects the operation of your network. Discussions will include those of best practices in platforms, configurations, performance, security and accounting.

Network Operations

Network analysis is the process of identifying and remediating the processes and systems within a network, including performance, connectivity and security. The process is performed through the use of tools developed for monitoring and analyzing network activity. Network problems that involve finding an optimal way of doing something are studied under the name combinatorial optimization. Examples include network flow, shortest path problem, transport problem, transshipment problem, location problem, matching problem, assignment problem, packing problem, routing problem, Critical Path Analysis and PERT (Program Evaluation & Review Technique).