Hello,
I´m developing a softphone and using asterisk 1.6 as server.
By sending audio from a wavefile in 20ms blocks over RTP, on the receiver
the stream will be played out too fast. If I´m doing a pause of 20ms before sending
each packet, it is played out well.
Is this problem on the timestamp?

I´m initializing the timestamp with 0 and then incrementing it with 160 like RFC 3550 said.
Before sending I´m converting the value with htonl() To Network Byte Order.
The softphone run on Windows.

What could I do false?

Best Regards,
Karsten