The information that you collect in Table C-3 sizes the trunks required from each site and designs the call admission control (CAC) for voice calls.
Site Name | On-Net Minutes per Month | Off-Net Minutes per Month | Number of Users | Total Minutes | Trunk Size Required[1] |
|---|---|---|---|---|---|
[1] The trunk size required is derived from the rest of the data.
The information that you collect in Table C-3 is helpful in sizing the PSTN trunks.
Note
On-Net refers to calls that originate from and terminate on an IP endpoint. An On-Net call never requires a connection to a PSTN and uses only IP for the entire duration. Off-Net refers to a call that requires the connection to a PSTN network to complete the call.