We started using the new family of Yealink phones several years ago and have been very impressed with the build quality and product features. We have installed thousands of Yealink phones, and have yet to see a failure in the field. The Yealink T4 series is intended for discerning users with very high expectations of IP phones. It has been designed specifically for people who take great satisfaction in experiencing excellence actually being delivered. Revolutionary in appearance and advanced technical design, the T4 series is not only pleasurable and practical to use but also offers extra-large display screens that make pen and paper redundant in the busy office environment.
The T31G is a basic two line phone intended for general employee use. Including a speakerphone and headset, the phone also features a passthrough port so that one internet jack can be shared between the phone and a PC.
The T31G features a GigE network interface and passthrough port. The T31P is less expensive, with a 100mb interface.