Source
Access your music from the IS9181
1.On your IS9181, press SOURCE.
2.Rotate the dial to My Music and press SELECT.
3.Rotate the dial to 
Computer Password and press SELECT.
4.Press SELECT to enter password.
5.Enter the password you selected for the IS9181 user account by rotating the dial and pressing SELECT for each character. Repeat this process until the entire password is displayed. Rotate the dial to highlight DONE , and then press SELECT.
IMPORTANT: If your IS9181 cannot find the computer with your music files, a firewall program may be blocking access. Temporarily disable the firewall, or consult the firewall software user’s manual to allow ICMP echo requests. Visit http://www.vtechphones.com/IS9181 for help with firewall software versions.
SourceBasic operation
Play music on your computer
To play music stored on your computer:
1.On your IS9181, press SOURCE.
2.Rotate the dial to highlight My Music and press SELECT.
3.Press SELECT to update computer list. The IS9181 searches and shows a list of computers on the same network as the IS9181.
NOTE: Other devices connected to your network such as printers may show on the computer list.
My Music
Update Computer List
Computer Password 
PC1
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