Phone support 2 media calls: Voice IP call and Video IP call.Make a callCall via dialing keypad1.Select the SIP line you want to use(SIP1,SIP2,SIP3,SIP4)2.Dial the number via keypad or touch screen directly. If you dial the wrong number,just press to delete it. Or press and hold it for delete all of them.3. After dialing, press voice or video key.Answer a callWhen you receive a call which is in contact, you could see the contact’s name ,small pic, number.Call ServicesVideo CallThere are 3 ways to make/answer video calls:1.If a incoming call is a Video call, you may see voice and video soft key. Pressvideo, you may answer it with video call.2.During voice talking, press to request to start video, if the other party answers,you may start video call with voice.3.If there is video request, you may press “answer” to accept it, or “reject” to refuse.During talking, press “Hold” to hold the current call. And there would beindication on the screen. If you need to resume call, just press “resume”.There are 3 ways to make transfer:1.During talking, press “transfer”, and then dial the 3rd number with pressing“send”. After the called party answers, press “transfer”.2.During talking, there is incoming call. Press “voice” to answer it. Then press“transfer”to let 2 parties talk to each other.3.During talking, press “transfer” and enter the 3rd number. Then press “transfer”,the 1st call would be transferred to the 3rd number for calling.If there are 2 calls call waiting, press “conference” and choose the number you wantto make conference. Then it would be 3 way conference status. If you want to closeconference, press “split” to end it and resume call waiting.Hold/Resume CallTransfer3 Way ConferenceMake a Phone Call