Lantone Systems Pte Ltd, Sangoma’s partner in Singapore, played a major role in demonstrating to ANTlabs how a Sangoma PBX can be configured to allow employees to connect to the system from a remote office or through mobile devices, facilitating the mobility of the company’s workforce. Lantone also demonstrated the High Availability (HA) Solution, a very important requirement for the customer, backed by former’s ability to provide 24/7 around-the-clock technical support in case of downtime, and to carry out routine maintenance. To improve the overall security of the telephony system, Sangoma’s Session Border Controller (SBC) was incorporated into the network design, for the purpose of screening incoming calls from the Internet router. ANTlabs was convinced of the benefits that the Sangoma solution would offer, and engaged Lantone Systems to carry out the transition to the new telephony system. The primary systems deployed were:  Sangoma’s FreePBX 100 appliances in HA.  Sangoma’s Enterprise Session Border Controller.  Sangoma’s Vega Analog FXS Analog Gateway. The basis of the system was a high-availability setup to ensure 24/7 continuous uptime for ANTlab’s telephony system, along with support for an analog-based fire alarm system for the company’s office building. While ANTlabs originally relied on the analog telephone lines utilized by its original Cisco system, Lantone Systems implemented a more reliable alternative in Starhub SIP lines and routers, along with a Hoiio redundant SIP Trunk for a backup option. The Session Border Controller (SBC) was implemented to ensure security and to facilitate incoming external calls from employees’ personal mobile phones. A Vega analog gateway’s deployment was carried to support fax capabilities.