Glossary
| Unanswered call | Call towards a DTS, that is ringing and is not answered. |
| Missed call (DTS) | Call towards a DTS, that is ringing and is not answered. All the unanswered calls that are still not checked by the user are counted and the functionality shows the total number of them as New missed calls. |
| Missed call (SIPex) | Call towards a SIP extension, that is ringing or busy, and is not answered. Unanswered calls not checked by the user are regarded as new missed calls, but there is no counter (i.e. multiple calls from the same origin are logged separately). |
| Multiple terminal service | Generic extensions, such as SIPex, can have multiple terminals registered to the same directory number. There are two configurations, Forking and Parallel ringing. |
| Outgoing call | Call from a DTS to another one, that is answered in the destination. For SIPex also abandoned outgoing calls are logged. |
| Incoming call | Call towards a DTS, and the call is answered. |
| Logged call | Call that is stored in the Number Log feature. |
| Navigation keys | These are the three keys in DBC 225 telephone to deal with the Top Menu: Left, Right and Home (exit). |
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