What API do you use to play the sound? Does it help to explicitly set the audio session category to a specific value before playing? Did you know about the "Audio Session Programming Guide" in the Apple documentation? Sebastian. | I am trying to find a way of receiving incoming call ans playing the | ring tone in the same volume level as set by the iPhone volume rocker, | or mute button. Currently when i receive a call the ring tone os | always the same, and loud. | | Is there any etting I need configure to allow PJSIP follow what the | iPhone has preset?