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YWH10 IP Phone
  
There are many kind of PA1688 IP phones made by Yuxin, all use their own software slightly different from our standard reference design. However, the operation of those phones are almost the same with the standard design.
Standard reference design IP phone web manual: SIP IAX2 H323 MGCP. Menu manual: SIP IAX2 H323 MGCP. Telnet manual: SIP IAX2 H323 MGCP.
YWH10 uses its own software with name like ywh10_sip_us_168000.bin. Both Yuxin and Palmmicro can provide the software. Although it looks like Primeworx P100 and IPH_E00_2G, the only common thing about those phones is that they all use perhaps the cheapest PSTN phone case available in the market. Large
YWH10 IP phone front view
Back. Large
YWH10 IP phone back view
Inside. Large
YWH10 IP phone inside keypad and LCD view
PCB, it looks almost the same as a PA168S, but you can find YWH10 printed on it. Large
YWH10 IP phone inside PCB view
Above pictures taken by Brute.
Following 3 pictures provided by Lalo Loud. Original software showed IP PHONE 1 V1.42.028. It might be an early prototype of YWH10, later Yuxin would use PCB with components mounted on single side for lower cost.
Shell. Large
Old YWH10 IP phone front view
PCB front. Large
Old YWH10 IP phone inside PCB view
PCB back. Large
Old YWH10 IP phone inside PCB back view