There are various functionalities (extensions) with which you can expand your telephone services. Below you will find the most used options:

Free hosted functionalities:
- Voicemail to email (default notification);
- Specify the fallback number;
- Transfer and put on hold;
- Waiting tone / music on hold;
- Determine your own inbound / outbound number;
- Determine device routing yourself;
- Call groups and hunting groups;
- Entering external telephone numbers (mobile and landline)
- Internal extension number, for internal calls and speed dialing;
- Providing username within a VoIP network;
- Fully manage the calling plan of numbers yourself.

Paid hosted functionalities:
- Opening hours
- Notifications
- Selection menu
- Queue
– Conference
- Listen in
– Fax
– Callrecording