Telephone Systems General Description

Features
Digital Pad
50 Strata CTX General Description 11/02
Digital Pad
The Strata CTX digital pad (decibel loss) is activated for the receiving path of the terminal,
external line or resource.
The system adjusts for differing transmission levels between internal and external devices. This is
very useful for conference calls when external parties have difficulty hearing due to public
network loss. The Strata CTX can be programmed to insert the appropriate digital pad for each
terminal and call type when establishing speech paths between telephones, external lines, and
resources such as conference circuits, external paging devices, and external sound sources. This
minimizes volume loss in conference calls.
The system recognizes these devices:
• Standard analog telephone (Type 500, Type 2500 and the equivalent)
• Toshiba digital telephone, cordless, wireless, door phone
• Analog trunk
• T1 trunk
• ISDN extension terminal (Audio and Speech)
• ISDN trunk/Tie line (Audio and Speech)
• Conference circuit
• Holding music source
• External paging device
Direct Inward System Access (DISA)
Direct Inward System Access (DISA) allows outside callers to connect to the Strata CTX and
make station or trunk calls as if they were stations within the system. An incoming call may be
directed to DISA by Direct Inward Dialing lines, ground/loop start lines or Automated Attendant.
Note DISA lines require DTMF receivers.
DISA security code is changeable from a specific station. The station to change the security code
needs to be allowed by Class of Service. This security code can also be changed using the Strata
CTX WinAdmin administration console.
DISA provides access to the features listed below:
• Station Calls
• Station Calls over Private Network
• Attendant Access
• Account Codes
DISA also provides access to these features, which require a security code:
• LCR
• Direct line access
• Outgoing line group access
• Emergency Call
• Call Forward Remote Control