Smartphone 3.5mm Jack to RJ9/RJ10 Plug for ONLY Cisco IP Phones Adapter Cable

headset adapter converter 3.5 millimeters ctia plug to female rj9 rj10 headset handset plug for most office phone not compatible with avaya cisco healing grand steam phones and snom phones.only compatible with some specific phone models listed in description comes with universal 3.5 millimeters omtp the ctia earphone converter adapter do not worry the incompatibility convert smartphone headset to 4p4crj9 rj10 plug for office telephones not compatible with avaya cisco yielding grand steam phones and snom phones please check the compatible phones list before your order.the oh not by the item if you can't find your phone model in lists contact us for advice click the link in the description to get this product today at the best price