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Call Forward Outside System

The Call Forward Outside System (CFOS) feature allows the system to forward incoming or transferred line

calls or intercom calls to telephone numbers that are outside the system. The CFOS feature forwards calls over

any available outbound lines or line groups and does not use any conference circuits. Since CFOS involves

outbound calls, those calls are subject to all line access, toll restriction, and automatic route selection

restrictions normally imposed on the users. Any calls that CFOS cannot service (no outbound line available, toll

restricted, and so forth), ring the system as normal calls. Note also that CFOS will not forward calls associated

with group intercoms and hunt groups. The CFOS feature is useful for after-hours forwarding of business calls

to alternate sites such as a home or cellular telephone. Ring no-answer (RNA) capability also applies to both

line and personal intercom calls. With this RNA capability, the system rings a station a programmed number of

rings and then forwards the call outside the system based upon the programmed CFOS setting. To help system

managers keep account of CFOS activity , the system marks CFOS calls with an F in the SMDA records

printout.

Users activate or deactivate CFOS by dialing a feature code, pressing a preprogrammed button or pressing an

interactive button on an LCD speakerphone. Once users activate CFOS, they select the outbound line or line

group in any of the normal line selections methods available to them. They also designate the forward

destination by dialing the number or pressing a speed dial button. (If users do not make a line and destination

choice, the system uses the most recently used selections.) DISA callers can activate and deactivate CFOS

remotely. When DISA callers activate CFOS, they receive several quick tone bursts and the system awaits any

program changes. When they deactivate CFOS, the system returns dial tone. After they gain access to the

system, they can dial the CFOS code, dial an outbound line or line group selection, and dial the destination

number. Once a user activates CFOS, it remains active and neither system resets nor power outages will

deactivate it. After activation, incoming or transferred calls to an idle CFOS-enabled station forward outside the

system to the CFOS destination over the selected outbound line or line group. CFOS-forwarded calls are subject

to the line-to-line disconnect timer action. If time-out occurs, the system alerts the system operator. He or she

can join the call as a conference member.

Before CFOS can occur for calls on incoming lines, installers must enable those lines for CFOS capability.

Before a CFOS-enabled station can forward a call outside the system, the system must be able to associate the

call receiving line with the station.

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Installers can take action to associate a CFOS-enabled line with an individual CFOS-enabled station. With

this arrangement, this station is the only one that can forward to an outside destination for a call received

on that line.

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At sites served by DID line blocks, installers must enable those lines for CFOS capability but they do not

associate the individual lines with specific CFOS-enabled stations. The system uses the DID translated

station extension to check for the station’s CFOS forwarding ability.

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When another station transfers a call to a CFOS-enabled station, the feature does not require a line

association with the CFOS-enabled station for it to forward the transferred call outside the system. In this

case, the system identifies the CFOS-enabled station before it makes the transfer.

In addition to the line programming action discussed previously, installers enable CFOS system-wide with a

system programming choice. They then enable the feature in both station class of service and individual station

programming, and may map a CFOS button on the applicable telephones. When mapping the button using

VMMI, installers can also select CFOS options for the station CFOS button along with a destination number;

however, any user selected destination number overrides this selection.

Comdial has taken reasonable steps in the design of all product features, including CFOS, which protect against

unauthorized or fraudulent access to, or use of, a system, or which protect against unauthorized, fraudulent or

unaccounted-for access to, or use of, long distance lines. However, no system is entirely invulnerable or

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Comdial and FXT Spezifikationen Seite 74

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