Welltech VoIP ATA series V.2.1 - Manual (Page 17)

ATA-171/172/171P/171M/171+/172+
User’s Guide
Information] will be seen when saving successfully, then the system will be restarted
automatically, please wait for a second.
(Figure 3)
Step 4: When using the speed dialing function, please choose the right key (like M2),
then the requirement will be forwarded directly to Phone2: 09123456789.
Notes：
【 1】：Phone equipment function。