NEC Xen Alpha Features And Specifications Manual

Features & Specifications Manual – Appendix B Page - 245
A6-506000-642-02
Xen AlphaRelease 1.0
Appendix - B
TONE PATTERNSThis chart provides the frequency and tone cycle patterns for the tones. Tones are used by the
system to inform users of system functions such as dial tone, busy tone and ringback tone. Note
that the tones and frequencies are listed for each type of telephone the Xen Alpha system
supports. In the chart (I) beside the frequency indicates the Xen Alpha telephone and (E)
indicates the...

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Doorphone
1Chime 
ToneN/A N/A
Busy 
Chime 
Tone1400 Hz/1100 Hz 
(I & E)N/A
Doorphone
2Chime 
ToneN/A N/A
Busy 
Chime 
Tone1024 Hz (I)
1100 Hz (E)N/A
Hold Alarm 1024 Hz (I)
1100 Hz (E)N/A
Howler Tone 2400 Hz 
(I & E)16 100% AM
Incoming Dial Tone 360 Hz/440 Hz 
(I & E)N/A
Incoming Ring Transfer 480 Hz/606 Hz (I)
520 Hz/660 Hz (E)16
Internal Ring Tone 500 Hz (I)
540 Hz (E)N/A
Key Tone 1100 Hz (I & E) N/A
Recall Tone 1024 Hz (I & E)...

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Ringback Tone for 
External Speaker CO/
PBX Ring Tone440 Hz/480 Hz
(I & E)N/A
Ringing Transfer Alarm 1024 Hz (I)
1100 Hz (E)N/A
Set Tone 1 800 Hz
(I & E)N/A
Set Tone 2 500 Hz (I)
540 (E)N/A
Timed Alarm 1024 Hz (I)
1100 Hz (E)N/A
Tone Override 500 Hz (I)
540 HZ (E)N/A
Trunk Queuing 500 Hz (I)
540 HZ (E)N/A
System Tone
(Fixed)Frequency (Hz)
(Fixed)ModulationCycle
ON
OFF1 sec.
2 sec.
ON
OFF0.5 sec.
0.5 sec.
ON
OFF.700 sec.
ON
OFF0.5...

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Features & Specifications Manual – Appendix C Page - 249
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Xen AlphaRelease 1.0
Appendix - C
GLOSSARY OF
TERMS
This glossary is provided to help you understand terms and abbreviations used throughout
this document. 
   
Table C-1:  Glossary of Terms
Te r mDefinition
Central Office (CO)Telephone company facility where subscribers lines are joined to 
switching equipment for connecting other subscribers to each other, 
locally and long distance. Also called CO, as in See-Oh. Sometimes the...

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ISDNIntegrated Services Digital Network. ISDN comes today in two basic 
flavors -- BRI, which is 144,000 bits per second and designed for the 
desktop, and PRI which is 1,544,000 bits per second and designed for 
telephone switches, computer telephony and voice processing systems. 
Neither ISDN BRI or ISDN PRI is a standard service, though there are 
several standard configurations. ISDN BRI is a wonderful service in 
your home or...

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SwitchA mechanical, electrical or electronic device which opens or closes 
circuits, completes or breaks an electrical path, or selects paths or 
circuits.  
Tenant ServiceSome businesses acquire a telephone system too large for their needs so 
they sell parts of the service to smaller offices in their own building or in 
the surrounding community. There are two ways to make money on 
tenant service -- renting telephone equipment...

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