Netgear RT338 참조 가이드

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Reference Guide for the Model RT338 ISDN Router
C-2
Ordering ISDN Lines
 
 summarizes the different switch types supported by your router and the related 
information about the switch types (number of phone numbers and SPID numbers). 
The information in this table refers to a “common” case and is recommended for such a case. 
However, exceptions still exist. You can locate the provisioning information for the appropriate 
North American switch type in the next sections.
Provisioning for Switches in North America
In most of North America, your telephone company can properly provision your ISDN line when 
you provide them with an ISDN ordering code (IOC) or EZ-ISDN code. ISDN Ordering Codes are 
a set of U.S. industry standards developed by the National ISDN Users Forum (NIUF). 
Summarizing a specific set of ISDN features and services, IOCs contain all the configuration 
information needed to quickly and easily provision an ISDN line. IOCs are accepted by most U.S. 
telephone companies. The NETGEAR Model RT338 router supports the following ordering codes:
IOC-S (basic voice and data service)
IOC-U (basic voice and data plus supplemental voice services)
EZ-ISDN-1 (basic voice and data plus supplemental voice services)
Note that the IOC-S capability package does not enable any supplemental voice services such as 
call waiting. You must ask your ISDN service provider to enable them for you, and you must 
inform the service provider if you want these services enabled for one or both of your ISDN 
channels (directory numbers). Specifically, you need to have Additional Call Offering (ACO) 
enabled in order to use call waiting or incoming call bumping or call rollover.
Table C-1.
Switch Types Supported 
Switch Type
Region
No. of Phone #s
No. of SPIDs
AT&T 5ESS NI-1
North America
2
2
AT&T 5ESS Point-to-Point
North America
1
0
AT&T 5ESS Multipoint
North America
2
2
Northern Telecom NI-1
North America
2
2
Northern Telecom Custom
North America
2
2
DSS1
Europe, Asia
2
N/A