User's Manual Part 1
party immediately. 
Figure 29: Blind Transfer 
2. Attended Transfer: During a call, select another line to establish call with the third party using 
the same account. This will put the previous line (Line 1) on hold. Now, press the “Transfer” 
button and the message: “Dial Number (Blind) OR Select Line (Attended)” will show up in the 
screen. Then select Line 1 to finish attended transfer. (See Figure 30) 
Figure 30: Attended Transfer 
NOTE: 
•  To transfer calls across SIP domains, SIP service providers must support transfer across SIP 
domains. 
•  If users enter a wrong number and wish to cancel the transfer, just press the “Cancel” in the 
screen shown in Figure 27. Then the call with the first party will resume automatically. 
•  If the user is on a video call with the first party, the users may need to turn off the video by 
pressing “Video off” or pressing “Hold” to activate the screen to select another line. 
Grandstream Networks, Inc. GXV3175 USER MANUAL    Page 26 of 68 
    FIRMWARE VERSION 1.0.0.32 Updated : 11/2010 










