sorry but my initial recommendation may not work nga pala since the wifi router will be the first one after the adsl modem. so the modem out should be connected to the WAN port of the router. it's either get an adsl modem/router from pldt, or get a new wifi router na nga lang. good brands for the price are edimax, d-link, tp-link at kung sa cdr-king, pick their Encore branded products (almost all naman is under 2k).