Freestyle 600 is a cordless telephone comprising a matched pair of cordless handsets with mains powered base unit and remote charger unit. Freestyle 600 conforms to CT1 requirements and has the following facilities;

facilities together with explanations where necessary.

Digital security coding (Handshake) For explanation, see "additional information"

Approved as prime instrument on DEL with base unit battery back-up. it is a legal requirement that if a cordless telephone is the sole instrument connected to the line, batteries must be fitted to enable emergency calls, during mains fail conditions, to be made. Batteries required are 4 x AA type and are located by sliding upwards the top cover (BT logo). The batteries will provide 7 hours in standby mode or 1 hour in talk mode.

PABX compatible (Earth or Timed Break recall)

Companding noise reduction chip which reduces background noise and gives higher quality reception.

Single wire base unit antenna

Dual signalling
Switchable between Pulse-earth P-E, tone-earth T-E or tone-time-break-recall T-TB. Switch is located at the rear of the base unit.

10 digit LCD display on handsets
Displays HSET 1 or HSET 2 when idle. If one handset is in use, the other handset displays BUSY or OUT OF RANGE should a call attempt be made from it.

Each handset can store 10 numbers of up to 21 digits in length. (N.B. storable characters include all the digits 1-0, *, #, pause and recall, each character counts as one digit in the memory store).

Transfer of calls between handsets: (not intercom calls)
To transfer an exchange line call to the other handset press intercom, the call will be put on hold and the display will show PAGE. The other handset will ring and the display of the called handset will show TF CALL. The called handset presses talk/standby to receive the call. No indication is given to the transferring handset that the call has been taken but the handset will revert back to display HSET 1 or 2, 15 seconds after the call has been accepted. if the called handset does not respond within 15 seconds, the attempt will be aborted. Both handsets will revert back to display HSET 1 or 2 and the displays will flash every few seconds with CALL as a reminder that a call is in hold. An audible alert will also be given at the base unit. The transferring handset presses talk/standby once again to re-take the call.

Full Intercom facility and paging between handsets:

Intercom facility exists between the base unit and either handset.

Base unit to handsets
Press INTERCOM on base unit Provided that both handsets are switched on, both handsets will ring. The handsets will display INT CALL whilst the base unit IN USE LED will flash quickly. When the intercom call is answered by either handset, a series of audible beeps will be heard at the base unit and the IN USE LED will flash at a slow rate. The handset will display INT. Conversation between the two is now possible. The other handset will display BUSY for a few seconds when the intercom call is answered.

Should both handsets be switched off, the base unit IN USE LED will flash quickly for 3 - 4 seconds and then stop.

If the other handset attempts to make a call during an intercom call, the handset will display either BUSY or OUT OF RANGE. An audible warning will be given to both intercom parties.

Handset to base unit
Pressing intercom on either handset will call the base unit. A series of beeps will be heard at the base unit and the IN USE LED will flash quickly. The calling handset will display INT. There is no change to the display of the other handset. If the base unit does not respond within 15 seconds the intercom attempt will be aborted. A further attempt can be made immediately if required. The base unit answers the call by pressing INTERCOM and conversation can proceed. Intercom calls can be cleared by either party by re-pressing intercom.

If a call is received during an intercom conversation, the handset will ring once every few seconds. Pressing talk/standby will cut off the intercom call and answer the incoming call.

Legal restraints limit the length of an intercom call to 3 minutes. After 2 minutes 50 seconds, both parties will hear a warning beep and the intercom call will be cut off. A further intercom call is not allowed until one minute has elapsed.

Paging between handsets
The other handset can be paged by pressing memory the other handset will ring for 10 seconds. Both handsets will display PAGE for 15 seconds. No conversation is possible between the two handsets and pressing talk/standby during paging will have no effect.

- Last number redial.

- Secrecy (microphone mute button)

- Battery low warning (handset battery)

- Auto Standby (automatically releases the line when handset is put back on the base unit or remote charger unit.)
Up to 100 Metres radius range between handset and base unit range test, enables user to check if handset is within range of base unit. Key 0 on either handset and the display will show TEST for a few seconds followed by the result, IN RANGE or OUT OF RANGE.

Made by Maxon Ltd (Thailand)

On sale terms from BT shops and UK Trade Sale outlets. Rental terms from BT only.

Freestyle 600 is approved as supplied under approval numbers S/3286/3/P/502831 for use on Direct Exchange Lines and PBXs in categories 1,3,5,7,9 & 11.

Modifications which have not received appropriate approval must not be carried out as to do so would invalidate approval making connection unlawful. Prestel RADAR database (page 54031) details those PABX equipment's to which the telephones may be connected as extension instruments. Intercom volume control on base.

Freestyle 600 user guide. Supplied with the instrument. Customer Field Notes. Published as necessary containing any product specific transitory information. Cordless Telephone Product Handbook PDM/TPO/A010 PLANNING
REN, Freestyle 600 has a REN of 1.

Freestyle 600 is designed for residential or normal office use, they should be installed away from sources of direct heat, excessive humidity, dust and vibration.

Approximate overall dimensions are:
Base unit with handset on rest: 150mm x 230mm x 90mm
Remote charger with handset on rest: 100mm x 230mm x 90mm
Weight of packaged instrument 1.8Kg.

A phone socket and 240 Volt, 13 Amp mains socket are required within 3.0 Metres of the base unit, mains power consumption is approximately 5 Watts. A further mains socket is required within 3.0 metres of the charging unit.

For maximum radio range the base unit wire antenna should be fully extended. The base unit should also be mounted away from any sources of Radio Frequency Interference or structures which may affect radio signals. In domestic premises locating the base unit in an upstairs room will give better range than at ground level. The cordless handset telescopic antenna should also be extended fully when in use to ensure optimum range.

Under trial conditions, no problems were encountered with Freestyle 600 when connected to any small, medium or large PABXS. If problems occur in the field, a 1.7 Mhz Medium Wave RF filter (e.g. Plug in RF filter Item Code 87 7596) may need to be connected between the cordless telephone and the PBX/KTS.
NOTE: The fitting of this filter does not guarantee compatible working and if problems persist, the customer should be informed that it is inadvisable to use this product with the associated PBX.
Cordless telephones can be affected by interference. e.g. from fluorescent lights or electrical appliances and range can be reduced by the screening effects of building structures, e.g. steel framework, foil backed wallboards. There are 8 pairs of frequencies allocated for CT 1 cordless telephony use, interference or overhearing may occur where other cordless telephones on the same or adjacent channels are located nearby. In such cases Freestyle 600 should be selected to have the greatest (at least two) channel difference from any other nearby CT1 cordless telephones.

Freestyle 600 is intended for retail sale and customer installation only. Installation instructions are included in the product user guide and involve;

Inserting (customer provided) batteries in base unit (if to be used as prime instrument)

Siting the base unit within reach of a phone socket and mains socket where it will give maximum range.
Setting the channel switch (A or B. base unit and handsets to same setting).
Setting mode switch on base unit (E for Earth recall PBXs or TB for Timed Break recall PBXs or for Network Services on DELs).
Although the handset batteries may have enough power to make a simple functional test, the handsets should be charged for 24 hours before full use.

Maintenance is restricted to rental Freestyle 600s and is limited to functional testing (following the Help section in the User guide, supplied with the instrument). Checking the transformer is functioning and that the facility switches are set correctly. If any part of the Freestyle 600 other than batteries, aerials and transformers are found to be faulty, the whole unit should be changed. Handset batteries are the responsibility of BT but customers with faulty batteries should be encouraged to return the handset to the BT shop where a new battery will be fitted.

The customer is responsible for provision and replacement of the (4 x AA size) Base Unit batteries.

New Freestyle 600 carry an 18 Month manufacturer's warranty to BT from the date of manufacture as shown on the base of the instrument (year and week marking forming the first four digits of the serial number). Customers will be given a 12 Month (return to point of sale) warranty from date of purchase irrespective of the date of manufacture. Warranty includes handset batteries but excludes base unit batteries.

Units should be returned with handsets switched to 'off' and base unit batteries removed.


Description   Item Code
Freestyle 600   870617
Aerial   870524 (handset telescopic aerial)
Batteries   870461 (rechargeable batteries for handset)
Freestyle 600 AC adapter   870526
Plug in RFI Filter   877596
BT 80A RF2   870157

To conform with EEC legislation on Nickel-Cadmium battery disposal, Freestyle 600 handset batteries must be returned to telephone shops or Zone stores for central disposal. They must not be disposed of locally.

Idle - Normal capacitor loop. Freestyle 600 do not draw on-hook current.
Seized - Normal loop.

Security codes
Freestyle 600 handsets and base units are matched together by their security code signal 'handshake'. The security coding prevents unauthorised access to the line by other cordless telephone users, the handshake is repeated at approximately ten second intervals during calls to ensure that only the matched handset controls the call. There are over 65,000 security codes, these are fixed on manufacture hence handsets and base units should be regarded as `matched pairs' and not separated, additional or replacement handsets are not available.

Use on PBXs and Key Telephone Systems (with 2-wire ports)
Freestyle 600 is approved for use as extensions to switching systems (PBXs approval in categories 1,3,5,7,9 & 11).

As with other CT1 cordless telephones, some of the 1.7MHz signal from the base unit may be picked up by the switching system causing system mis-operation.
No problems have been found when used on Medium & Large PBXS.

Incoming ringing signal
To comply with user safety requirements for prevention of acoustic shock, the tone caller output is regulated and builds up in volume over 4 bursts of ringing. Freestyle 600 has been designed to cadence-follow when ringing.

Base unit batteries
It is a condition of CT1 approval that if used as the 'sole' (prime) instrument on a DEL, outgoing emergency calls must be possible in mains fail, to enable this 4 AA size cells (Leakproof Alkaline type preferred) must be fitted (customer's responsibility) in the base unit.

Radio power output
To comply with CT1 requirements, the effective radiated power (ERP) transmitted by the handset or base unit must not exceed 10 milliwatts, the Base unit transmits 1.7Mhz signals from the wire aerial to the ferrite aerial inside the handset and the handset transmits 47Mhz signals from the telescopic aerial to the base unit wire aerial.

Calls on any CTI telephones are not secure from overhearing and may be picked up by other cordless telephones operating on the same frequencies or by Medium Wave radio receivers, Freestyle 600 will cleardown calls if the 'handshake' is affected by an interfering call.

Battery charging
Freestyle 600 requires 24 hours for a full charge, fully charged batteries should, in practice, give 12 hours use in talk mode 30 Hours in standby Mode. If batteries need recharging, the handset will emit a warning tone and BATT will be displayed on the LCD. This occurs in either talk or standby mode. Users are recommended to leave the handset on charge over night in normal use. Battery capacity can be expected to reduce after 2 years use when customers can have new batteries fitted in the handset at BT Phoneshops for a charge. If customers wish they can fit the batteries themselves. Rental customers' batteries will be replaced free of charge.


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Last revised: October 30, 2022