Yeastar has released new firmware update version 126.96.36.199 for S-Series VoIP PBX, which includes powerful new features, a bundle of great optimisation and bug fixes. One of the most noticeable changes is the added support for QueueMetrics On-premise, to deliver a more comprehensive and powerful call centre solution. In addition, this new version also brings enhanced security mechanism, so we strongly recommend that you upgrade to this new version. Changes since firmware release 188.8.131.52. NEW FEATURES Supported 30 Extension Groups….