Auto picks up call hack - Cisco SPA301

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This modified IP phone for automatic picks up call on the TRX side of remote. [https://remoteqth.com/img/wiki-spa301-1.jpg] * remove the pcb board from ip phone [https://remoteqth.com/img/wiki-spa301-2.jpg] * decompose hang up switch, and insulation [https://remoteqth.com/img/wiki-spa301-3.png] * apply circuit by [OK2ZAW|https://ok2zaw.blogspot.cz/] - any P-chanel Mosfet (IRLML6402PBF) and NPN transistors (2N2222A) [https://remoteqth.com/img/wiki-spa301-4.jpg] * now IP phone picks up the call automaticaly. !!Cisco SPA301 connectors * 4p4c [Handset|https://en.wikipedia.org/wiki/Modular_connector#Handset_wiring]{{ ------- | ---| tp389 mic +2V | ---| tp390 sp | ---| tp391 sp | ---| tp392 mic GND ------- }} * Hang up switch{{ | o| n/c o| n/c o| 3,3V o| input | ---- | eth | }}