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High-performance and Scalable for Productive Communication. Supporting registration with up to 10 Yealink W57R DECT handsets. the W77P system is launched with robust processing capacity for up to 10 SIP accounts and 20 silmultaneous calls. More flexibility and mobility could be enabled through up to 6 optional repeaters for extended network coverage. Reliable Audio Performance for Mobile Communication. With over 20 years of experience in audio technology. Yealink applied a combination. of state-of-the-art technologies to the W57R to provide users with crystal-clear calls. Even in complex or wireless interference-filled environments. a stable and high-quality audio experience that fits perfectly into everyday work. A Protective Solution for Harsh Environments. The Yealink W57R is a professional rugged DECT phone built to endure. even in challenging work environments. 5m drop without being damaged. rubber surface prevents slips. and everyday wear and tear. -There is also no need to worry about the Oops moments in daily life. the W57R resists spills and splashes of liquids like coffee. -Protection rating of 54 (IP54). dust doesn't stand a chance. Best Battery Life Ever on Yealink Handsets. Yealink W57R can support you all the time. as it features up to 40 hours of talk time and 575 hours of standby time. You can do more on a single charge! If you forget to charge. W57R also supports quick charging that 10-minutes charging time can outlast two hours of talk time!. The upgrade is always stuck at 99%? W57R saves you from this trouble! It does not affect the use of the handset during the firmware transfer and can perform calling. checking history and other functions as usual. Even if the handle is turned off or dropped. it can support disconnected transmission after reconnection. Any new message can be critical to the business. and the vibration alarm feature makes sure that every call is noticed. even in cluttered and stressful environments. Missing calls will not be your concern. Streamline Provisioningfor Labor and Time Costs Saving. The W77P supports efficient provisioning and effortless mass deployment with Yealink's Redirection and Provisioning Service (RPS) and Boot mechanism to help realize remote deployment. The new web portal for device management brings clear and intuitive interface to upgrade user experience. Yealink Full-range of DECT Devices Solutions. Yealink W77P DECT IP phone system is also compatible with Yealink whole series of DECT endpoints including handsets. conference phones and DD phones. offering additional choices for building up wireless communication network in various workspaces across small and medium size business.