ZyXEL Communications omni series user manual Control of Endgerä Teauswahlziffer EAZ, Modem, G3 Fax

∙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		Addi. S. I.
	S107: analog, Phone 1		S111: analog, Phone 1
	S104: analog, Phone 2		S108: analog, Phone 2
Telephone	1	(Fernsprechen)	1	(3.1 KHz)
Modem	2	(analog - dienste)	3 (Daten Ü ber Modem) or
			4	(Btx Ü ber Modem)
G3 Fax	3	(analog - dienste)	2	(Fax Gruppe 3)

Control of ENDGERÄ TEAUSWAHLZIFFER (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 can select, via the public network, one or more distinct terminals on a single BRI line.

With its highly integrated, multi-function features, the TA128 can be viewed as a “black box” containing multiple distinct terminals. Each

Advanced ISDN Call Control 83