Control Of Outgoing Service Indicator; Table 7-1. S-Register Values And Functions - NETGEAR XM128 ISDN Reference Manual

Reference Guide for the Model XM128 ISDN Digital Modem

Control of Outgoing Service Indicator

The high-layer compatibility and low-layer compatibility information provides a means for
compatibility checking by the called party. This information is transferred transparently by the
ISDN network between the call-originating entity (for example, the calling user) and the addressed
entity.
The outgoing high-layer compatibility can be controlled by setting the value of S-register
S(108+n) as follows:
• n=0 (S108) setting for analog adapter 2
• n=2 (S110) setting for ISDN data calls
• n=3 (S111) setting for analog adapter 1
Table 7-1 lists the S-register values and their functions.
Table 7-1. S-register values and functions
S(108+n=) Function
0 No high-layer compatibility info element sent (default)
1 Telephony
4 Facsimile Group 2/3
40 Telex service (Rec. F.220)
49 Telex service (Rec. F.200)
50 International internetworking for video services (Rec.
F.300 and T.110)
53 Telex service (Rec. F.60)
56 Message Handling Systems (MHS)
(Rec. X. 400 series)
65 OSI application (Rec. X.200 series)
Example: ATS111=4 sets fax compatibility message for analog port 1.
7-2 Advanced ISDN