Each activated user in your tenant has been assigned a Class-of-Service (COS) package, which is a pre-built set of telephone features. The Manage Users page shows the packages assigned to individual users.

You can customize packages to add or delete the features you want.
| Feature Name | Feature Description |
|---|---|
| Block Caller ID Delivery | Always blocks the Caller ID on outgoing calls. Users can selectively unblock or deliver their Caller ID. |
| Call Forward Fixed to Voice Mail | Lets the user forward their calls to voice mail and makes this option available in the Reach Me section of their portal. |
| Call Forward Variable | Lets the user forward all of their calls to another number. |
| Call Waiting | Lets a second incoming call come to a single-line analog handset. If this feature is not enabled, the second incoming call receives a busy signal. |
| Compression | Compression (also known as G.729) is a codec (coder/decoder) that uses a special signal processing technique to reduce the amount of bits used for the voice signal. This uses less bandwidth per call than what is used by a traditional digital PSTN call using the uncompressed (G.711) codec. |
| Contact Name Lookup | This feature matches the phone numbers of incoming callers with their names for Outlook Integration Contact List treatments and the call log display. |
| Disable Canada Calls | Disables calls to Canada. |
| Disable Directory Assistance Calls | Disables calls to Directory Assistance. |
| Disable International Calls | Disables calls to international numbers. |
| Disable Local Calls | Disables local calls. |
| Disable Long Distance Calls | Disables long distance calls. |
| Disable Mexico Calls | Disables calls to Mexico. |
| External Transfer | Lets users transfer an incoming call to another number that is not within the tenant. |
| Voice Mail | Enables the voice mail feature for this user. A voice mail number for the user must be entered into the user's profile. |