Tones
The tones are applied to inform the user about different states of the user, network situations or events in the call set-up phase, during conversation or when the user activates, deactivates, interrogates or invokes a service.
The tones are applied in conformity with ITU-T Recommendation Q.35. The default levels of the tones are stated in dBm0 at the Telesis system in which the tone is inserted. The harmonic distortion of all tones is <1%.
- Cadences,
- Levels, and
- Frequencies
of the tones are programmable without interrupting the operation of the Telesis system. Some editable tones are:
- Dial tone : It is normal dial tone when the user is in idle state
- Diversion activated : It is tone when unconditional call diversion function is active
- Authorization modified : It is tone when allowed call class (user) is different from the allowed call class (system). That is the user modified his authorization level for password-dialing
- Delayed hot line : It is tone when delayed hot line service is active
- Confirmation : It is confirmation tone when a service call is accepted by the system
- Vacant : It is tone when dialed digits are not sufficient to route the call
- Busy : It is tone when the destination is busy
- Overflow : It is tone when there are no system resources to route the call or to activate a service
- Howler : It is tone when the first digit dialing time-out occurs
- Local call ring 1 : It is ring and ringback tone type-1
- Local call ring 2 : It is ring and ringback tone type-2
- Local call ring 3 : It is ring and ringback tone type-3
- Local call ring 4 : It is ring and ringback tone type-4
- Trunk Call ring : It is ring and rinback tone for incoming trunk calls
- Secondary dial tone : It is tone when a call is hold
- Multiple entry : It is tone when using multiple-entry services like changing status of several users at once
- Multiple hold : It is tone when holding multiple calls on
- Reminder service : It is tone when reminder service is active
- Camp on : It is tone for camped calls
Announcements
Telesis systems provide a hundred of different recordable announcements (or system messages), each of them may be with several minutes duration. Some of these announcements are used for predefined applications such as:
- Welcome (greeting) message
- Busy message
- Alerting message
- Call hold message
- Call park message
- Wake up or reminder call message
- Voice mail send message
- Voice mail receive message
- Voice mail pending message
- Voice mail quota warning message
- Camp on message
- No answer message
- Voice to be recorded message
Many other remaining announcements are like ready-to-use resources. Using the advanced routing algorithms of the Telesis system, callers may be routed to these announcements. System administrators may decide on criteria when to play an announcement. Some typical applications may be:
- Playing an announcement to users not paying their bills
- Playing an announcement when there is no available channels in a route
- Playing an announcement to users, who are disabled for outgoing calls
- Playing an announcement when the called number is moved
- Calling multiple users and playing the same announcement to all
