set O_CLOEXEC flag on sccp_sync_queue pipe
rework queueing of "no device lock" tasks
handle redial softkey
handle newcall softkey
handle endcall softkey
handle answer softkey
reorder functions
handle hold/resume softkeys
add dial timeout
handle enbloc message
handle stimulus voicemail message
handle stimulus speeddial/featurebutton messages
handle version req message
handle transfer softkey