[2025-07-02 08:51:40.046] WARNING[896]: utils.c:2241 tvfix: warning too large ti mestamp 0.2482000
[2025-07-02 08:51:40.125] WARNING[896]: chan_usbradio.c:1535 soundcard_writefram e: Channel 42690: Sound device write buffer overflow - used 21 blocks
Both messages suggest that some operation too longer than expected. The first log message is reporting a time of 0 seconds and 2482000 microseconds and the latter value should not be more than 1000000.
The second messages suggests that we had more audio to write then the sound card was ready to accept. This shouldn't happen unless something got stuck.
What version of asl3/asterisk are you running?
Pi3 with a DMK-URI.
Just updated to latest version
asl3 3.8-1.deb
asl3-asterisk 2:22.4.1+asl3-3.5.4-1.deb12
asl3-asterisk-config 2:22.4.1+asl3-3.5.4-1.deb12
asl3-asterisk-modules 2:22.4.1+asl3-3.5.4-1.deb12