Isdn Information - Polycom ReadiManagerLX100 Management Manual

Appendix

ISDN Information

Service Profile Identifiers
Service Profile Identifiers (SPIDs) are only allocated by service providers in the United States and Canada. Service
providers in these markets create a service profile based on which ISDN features you require, then assign you a
unique Service Profile Identifier (SPID) which allows you to use these particular features.
Depending on your ISDN variant, your ISDN line will have zero, one, or two assigned SPIDs.
The following table describes ISDN standard cause values that are sent from the ISDN switch to the router to indicate
ISDN call status.
Although the cause values are standardized, each ISDN service provider uses its own version of the cause message
wording. Therefore, the cause messages shown in the table below might not be the exact messages that appear on
the terminal.
Polycom ReadiManager LX100 User Guide
Switch Type
AT&T 5ESS Custom
AT&T 5ESS NI-1
NT DMS-100 NI-1
NI-2
Siemens EWSD NI-1
Siemens EWSD NI-2
International (outside of United States or
Canada)
SPIDs Allocated
None
1 per B-channel
1 per B-channel
1 per device
1 per B-channel
1 per device
None
Appendix 125