* Check that the filters for Cellular calls are set to an acceptable level.
For Cellular calls you would prefer calls shorter than 10 seconds to
be discarded.
When a cellular router is setup, the RatePrefix used should start with Cell,
since all rateprefixes starting with Cell will be filtered through the
Cellular Filter.
* Remember to take into account that the time taken to dial a cellular number and
the time waiting for the call to be answered is added to the duration of the
call by the PABX. This might cause a cell-call to appear longer than it was.
Which in turn will make the call seem more expensive