Last Updated: 08/28/2026
One of the best-known non-profit organizations on earth, the Red Cross provides emergency assistance, disaster relief, and disaster preparation education in over 190 countries through 17 million volunteers. In Tonga, a remote country made up of over 170 islands in the South Pacific Ocean, the Red Cross is vital to the safety, health, and protection of its citizens and visitors.
The Need
The Tonga Red Cross needed a modern phone system that would give them the features and capacity to handle more calls in a quick and efficient manner while providing better services to those in need. Being a remote island, Tonga lacks access to SIP trunks and relied on analog services. However, modern VoIP platforms, like Grandstream’s UCM series, allow for internal VoIP networks to be built and connected to the outside world through PSTN trunks. This would allow the Red Cross to greatly increase call handling, routing and capacity by routing analog lines through an internal VoIP network.
The Solution
Serverworks, a communications installer in New Zealand, built a new voice solution for the Tonga Red Cross using Grandstream’s UCM6208 IP PBX. This on-premise IP PBX was integrated with Grandstream IP phones throughout their offices to build an internal VoIP network while being integrated with analog trunks. Analog calls come into the UCM6208, and the device can route those calls through the VoIP network while extending powerful VoIP features including IVRs, auto-attendants, caller ID, and multi-language support. This deployment used UCM6208. Today, the same solution can be created with the UCM6300 series of IP PBXs.
The Result
“It was a big leap forward for the Tongan Red Cross Society as they suddenly had these “smart IP phones” on their desks and all this call functionality they didn’t previously have. It was a massive departure from the broken key-phone system they were used to and it was very easy to train them on using the Grandstream phones. They now comfortably pass calls around, handle call overflows and leverage the data that the UCM produces and call restriction features to manage their call costs. They even have an IVR that gives callers the option to listen in Tongan or English. This experience has given us huge confidence to deploy the UCM series around other Pacific Islands where PSTN is the only option currently.”
- Kraig Winters, ServerWorks