hello

When I try to connect the cellphone with OpenBTS , the output is:

ortp-warning-Must catchup 83 miliseconds.
ortp-warning-Must catchup 73 miliseconds.
ortp-warning-Must catchup 63 miliseconds.
ortp-warning-Must catchup 53 miliseconds.


What could be the problem?

Thanks a lot for your colaboration.