Hi, a SIP softphone (linphone) and asterisk are installed on the same system. The softphone rings and can initiate outgoing calls (isdn/bri/chan_misdn), but there is no sound. There are error messages from the softphone : MediaStreamer-WARNING **: The remote sip-phone has send data with a future timestamp: 1762917720,resynchronising session. No problem with calls from one SIP phone to another. Using a gs bt 100 instead of the softphone does not make problems either. Is this a linphone problem or is it a asterisk problem ? -- Stefan Tichy <asterisk@pi4tel.de>