Log showing warning when I make calls:

Log showing warning when I make calls:

[2018-02-22 17:12:51] WARNING[1160][C-00000401]: chan_sip.c:7536 sip_write: Can’t send 10 type frames with SIP write

What this mean? I should be worried with it?

It is comfort noise. Asterisk doesn’t support comfort noise, I guess that message has been removed on recent vesion of Asterisk not sure really