Recommendations
289
Recommendations
3Com recommends the following for ISDN PRI services.
Framing type
Recommended (also the default) configuration:
Extended Super Frame
(ESF)
The multi-frame formats F4, F12 (D4 or SF), and F72 are also supported.
Zero Code Suppression
Recommended (also the default) configuration:
B8ZS
AMI is also supported.
DID applications
For DID or DNIS, 3Com recommends that you order telephone numbers
that easily fit in the NBX 100 numbering plan. If possible, use 3 or 4 digit
DID/DNIS codes, which allow for simple dial plan implementation.
Recommended:
With 3 digit extensions 100-499, the last three digits of the DID/DNIS
codes should be 100-499.
With 4 digit extensions 1000-4999, the last four digits of the DID/DNIS
codes should be 1000-4999.
Line Hunting Sequence
3Com recommends that indicating the channel hunting sequence for
incoming calls. (Typically incoming calls are received starting on channel 1
and hunting up.) Have the client verify available service with the provider.
Supported Telephone Central Office Switch Protocols
NBX 100 ISDN PRI services support the following central office switch
protocols:
■
AT&T 5ESS Custom
■
DMS Custom
■
National ISDN NI-1/NI-2
Содержание NBX 100
Страница 1: ...http www 3com com NBX 100 Installation Guide Release 2 8 Part No 900 0026 01 November 2000 ...
Страница 12: ......
Страница 18: ...18 ABOUT THIS GUIDE ...
Страница 128: ...128 CHAPTER 2 CONFIGURING THE DIAL PLAN ...
Страница 196: ...196 CHAPTER 4 CONFIGURING NBX 100 SYSTEM LEVEL SETTINGS ...
Страница 238: ...238 CHAPTER 6 SETTING UP USERS AND FEATURES 6 Click Apply to effect the changes 7 Click OK ...
Страница 268: ...268 CHAPTER 7 CONFIGURING DIGITAL LINE CARDS T1 E1 AND BRI CARDS ...
Страница 286: ...286 APPENDIX A NBX 100 SYSTEM SPECIFICATIONS ...
Страница 290: ...290 APPENDIX B T1 AND ISDN PRI SERVICES CIRCUIT PROVISIONING ...
Страница 294: ...294 APPENDIX C GUIDELINES FOR REMOTE AUDIO DEVICE CONNECTIONS ...
Страница 306: ...306 INDEX ...