Howto:FMC

This article outlines the desirable features of an FMC (Fixed to Mobile Conversion) solution. FMC is a buzz term that refers to the ability to use a standard mobile phone just like a PBX telephone set. Other terms (e.g. Mobile integration) are used though too.

In reality, FMC users mostly have 2 or more phones (a PBX telephone set, a mobile, a soft client, ...), creating need for coordination of all these devices.

The table lists some of the desirable features and shows how various solutions we have looked at perform. Not all of them are mandatory though.

• CFU refers to the trivial implementation (setting a call forwarding unconditional to your mobile)
• poor mans FMC is what can be done today with innovaphone PBX standard features
• VoWLAN means using a standard SIP WLAN / UMTS phone
• Quescom refers to the Quescom FMC Solution
• 2N refers to the 2N FMC solution (not yet tested)

Note that Vierling, Boomering, Counterpath or Optimobile (and probably lots of others) could be added here.

Feature Group	Feature	Description	CFU	FMC für Arme	VoWLAN	Quescom w/ mobile client	Quescom w/o mobile client	2N
one number	all devices of a single PBX user share the same extension
	incoming	user is always called with one extension, free choice of device to answer call
	outgoing	always the same extension is signaled for outbound calls, regardless of the device the used has chosen to call
	busy on busy	user is considered busy if any of his devices is busy
	parallel ringing	all devices are signaled in parallel for incoming calls
	offset ringing	some devices ring first, others later (e.g. mobile is called only after a few seconds)
	conditional ringing	some devices ring only if others (e.g. softphone, SIP client) are not registered
	correct CLI	incoming calls calling party number are correctly shown on all devices (e.g. mobile)
journal	all devices share the same call journal
	incoming	incoming calls are shown on all devices
	missed	missed calls are correctly shown (no missed calls if call is taken on another phone)
	outgoing	outgoing calls are shown on all devices
	completion	outgoing call completion (no anser, busy, wrong number, ...) is shown correctly
CTI	CTI works
	busys status	user (not device) busy status is shown correctly
	presence status	presence status of user is shown correctly
	presence update	presence status can be set by all devices
	place calls	CTI can place/accept/transfer calls on the "active" device
	group functions	CTI can do group pickup / partner groups (e.g. mobile rings, secretary picks call)
basic call	Basic telephony features do work for all devices
	CF*	Set/clear/show call forwarding
	Hold / Retrieve
	3PTY	3 way conference
	Consultation	Consultation call can be done, setting current call on hold
	Transfer
VM	Voice Mail
	MWI	Message waiting indication is shown
	shared box	all devices share the same voice mail box
Supplementary Features
	Park	Calls can be parked from any device and unparked from another (of this user)
	Call Completion	CC on busy, on no response can be requested
	Join	User can join / unjoin a PBX group
	Lock	Lock / unlock phones with PIN
	DND	Set / unset / show do not disturb (internal / external)
	CW	Set / unset / signal call waiting
	CLIR	set / unset / set-next-call CLIR
Directory
	personal	use / maintain personal (not device local) directory from all devices
	enterprise	use shared enterprise directory from all devices
	reverse	resolve incoming number
	display	show display name (sent by caller or from directory) on all devices