ZyXEL Communications Omni TA128 - Manual (Page 90)

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Service Indicator - Determines what kind of bearer services
are desired.
•
Destination Address - Provides information for the telephone
company to direct the call to the remote party.
Control of Outgoing Service Indicator
The Outgoing Service Indicator will be assigned when you
configure the B channel protocols using the command ATBnn.
Since there are a number of combinations of voice or voice-band-
data services on the analog adapters, users may want to control the
outgoing Service Indicator themselves for some specific
applications.
Use the following table to configure S104/S107 (Service Indicator)
and S108/S111 (Additional Information Octet) according to the
terminal types:
Service Indicator
S107: analog, Phone 1
S104: analog, Phone 2 Addi. S. I.
S111: analog, Phone 1
S108: analog, Phone 2
Telephone 1 (Fernsprechen) 1 (3.1 KHz)
Modem 2 (analog - dienste) 3 (Daten Über Modem)
or
4 (Btx Über Modem)
G3 Fax 3 (analog - dienste) 2 (Fax Gruppe 3)
Control of ENDGERÄTEAUSWAHLZIFFER (EAZ)
EAZ (or Terminal Selection Code) is the last digit of an ISDN
phone number in 1TR6. Usually EAZ=0 indicates a global call. Any
terminal on the S0 interface which is service-compatible with the
incoming call, can answer the call.
Other values of EAZ (1,2,....,9) provide the possibility for assigning
multiple ISDN numbers to a single ISDN BRI line. A calling user