Netgear XM128 QIG - Quick Install Guide - Page 58
V.110 ISDN Communications
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Reference Guide for the Model XM128 ISDN Digital Modem V.110 ISDN Communications This section describes how to set up and configure your Model XM128 modem with the V.110 Protocol. Answering a V.110 Call After you set the proper V.110 communication mode, there is no need to configure the ISDN mode to the protocol of an incoming call. If the device is set to auto-answer, the Model XM128 modem determines the correct protocol to use by examining the data coming in from the remote site. Otherwise, this determination takes place after an answering command is issued. One exception to this process is when the ISDN data call is carried through speech bearer. In this case, you need to make an MSN entry for the phone number from which you are expecting the data-over-speech-bearer call to be coming for X.75 protocol. Use AT&ZI1=n. Refer to "Data over Speech Channel" on page 6-7 for details. To allow the Model XM128 modem to answer the incoming call, you need to set S0 to a value greater than 0 (in other words. ATS0=1). The Model XM128 modem answers the call and uses asynchronous to synchronous conversions to and from the DTE. If S0 is not set (S0=0), the DCE reports RING and also makes an audible ring notification. Making a V.110 Call Before an ATDIxxx command is issued to dial out, make sure that your Model XM128 modem is in the asynchronous mode (AT&M0). Use the commands in Table 6-6 to configure V.110 ISDN communication. Table 6-6. V.110 configuration commands AT Command ATB10 ATB13 ATB14 ATB15 ATB16 ATB17 ATB18 ATB19 Description User rate follows DTE speed User rate = 2400bps User rate = 4800bps User rate = 9600bps User rate = 14400bps User rate = 19200bps User rate = 38.4 Kbps User rate = 57.6 Kbps (Japanese version only) 6-10 ISDN Overview