Phone 1 42SmartLink M-ATA Getting Started Guide 5 • TelephonyThe selection of T.38 or G.711 fax pass-through for fax transmissions originated from the SL4020 will bedetermined by the receiving fax device. T.38 is enabled by default.To disable T.38, go to Telephony > CODECS and select FAX without T.38 (Use G.711 fax) (see figure 19 onpage 41).Saving your workWhen you are finished configuring CODEC settings, click the Save CODEC Configuration button (seefigure 19 on page 41) to save the changes.Phone 1The Phone 1 window contains the following sections:• User Information (see figure 20)• Supplementary Service Settings (see figure 21 on page 43)• Dial Out Type (see figure 22 on page 45)• Call Forward Settings (see figure 16 on page 39)• Selective Call Forward Settings (see figure 17 on page 39)• Incoming Call Block (see figure 18 on page 40)• Distinctive Ring Settings (see figure 18 on page 40)• HTTP Digest Setting (see figure 18 on page 40)Note After configuring the sections, click the Save button (see figure 27 onpage 47) to save the new configuration.User InformationFigure 20. User Information section of Phone 1 window