U

Index

[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z]

udev daemon
UDP transport-layer protocol
        use with SIP
        VoIP Quality of Service and
UHCI USB controller
        not accessible on Linux 2.4 kernels , error caused by
        verifying
UHCI-type USB controller
unanswered calls, Dial( ) application handling of
unavailable message for voicemail
Unified Messaging
UNISTIM (Nortel VoIP protocol)
Unix environment variables , accessing from Asterisk
unload command
UnpauseQueueMember( ) application
UPSs (Uninterruptible Power Supplies )
        power conditioning and
        redundant power supplies and
URL argument, Dial( ) application
USB controllers, for ztdummy
usb-uhci module
        use by ztdummy, shown in lsmod output
        verifying loading of
usbcore module, verifying loading of
use strict command 2nd
UserEvent( ) application
users
        connections defined as
        DUNDi
        IAX
        IAX FWD incoming calls
        SIP connections