Cisco Unified PhoneProxy solves critical challenges related to mobility, security, and access management for companies that have adopted the Cisco IP Communications platform.The need for mobility and the trend toward telecommuting have increased demand for deployment of IP phones to employees' homes and other remote locations. Organizations interested in placing Cisco IP phones in these remote locations have traditionally found it necessary to purchase, configure, deploy, and support a VPN router with the IP phone in each remote location in order to meet security requirements. In some cases this is the best option. In other cases, the cost and complexity of deploying VPN routers to these remote locations can be prohibitive. When VPN routers are not a good option, organizations can use Cisco Unified PhoneProxy to enable secure deployment of Cisco IP phones to these locations without the need for VPN routers.In addition to securing IP phones deployed to remote locations, Cisco Unified PhoneProxy can also help organizations meet security requirements related to the use of Cisco IP Communicator. When company employees use Cisco IP Communicator from the office, home, or on the road, voice traffic is placed onto the corporate data VLAN and must cross over to the voice VLAN to reach Cisco Unified CallManager, creating a significant security threat because holes must be opened in the firewall between the two VLANs for each computer running Cisco IP Communicator.Cisco Unified PhoneProxy can be placed in a location of the customer's choice to aggregate voice traffic from all Cisco IP Communicator sessions and send this traffic through to Cisco Unified CallManager, enabling security personnel to open either no holes or just a single hole in the firewall between the data and voice VLANs and monitor and secure this point of entry closely. It also obscures Cisco Unified CallManager information to further protect it from security threats.