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-
-
- Firmware 6.11a Corrections 1-5-1994
- ------------------------------
-
-
- 1. Modem will fix line speed if the rate word from remote modem only
- indicates one speed capability. If remote modems tells the ZyXEL,
- it wants to maintain 1 speed only regardless of phone line conditions,
- then the modem will not try to retrain or fall back.
-
- 2. Add delay before sending V42 XID frame after ADP detected. Maintain
- compatibility with some modem's 1200 bps V42 handshaking.
-
- 3. With &M1, modem will send asynchronous connect message before it
- switches to synchronous link.
-
- 4. The problem of AA LED not blinking when ringing signal detected is
- fixed.
-
- 5. V.33 compatibility improved.
-
- 6. V.29 modulation for 4W leases line modified.
-
- 7. Fixed V.25bis in &D3 mode.
-
- 8. Fax calling tone (CNG) will be terminated only after valid HDLC frame
- received.
-
- 9. Solved QuickLink II fax compatibility problem (fix DTE at 19200 on fax
- mode by S39.4=1).
-
- 10. Parallel fax receiving problem (S38.4=1) fixed. The modem will
- disconnect when an incoming fax is detected and allow the fax machine
- that is connected to the ZyXEL to receive the fax.
-
- 11. AT+fclass=8 will no longer reset voice parameters.
-
-
-
- Firmware 6.11a Feature Enhancements 1-5-1994
- ---------------------------------------
-
-
- 1. Implemented the data calling tone detection in voice mode, <DLE>e.
-
- 2. Implemented the dial tone detection in voice mode, <DLE>d.
-
- 3. Implemented an inactivity timer in voice play mode, use AT+VIT to set
- the timer between 0 and 255, the unit is in 1.0 second.
-
- 4. Add VCON sensitivity configuration, use AT+VVT to set the value
- between 0-255. A higher value decreases the sensitive. The default
- value is 16.
-
- 5. Add voice recording re-sync timer, use AT+VSY to set the timer
- between 0-255, the unit is in 50 ms.
-
- 6. In voice play mode, you can use the <DLE>p to pause or <DLE>r to
- resume the voice play from data buffer.
-
- 7. In voice play mode, the <DLE><CAN> command clears the transmit buffer
- of voice data in modem.
-
- 8. In voice play mode, the <DLE><DC4> command clears the transmit buffer
- of voice data then forces modem to return to command mode.
-
- 9. S48.2=1 enables data CNG calling tone transmission.
-
- 10. Set bit 1 of s48 to enable "Data Only" mode
-
- a. auto detect ZyX/V32bis/V32/V22bis/V.23/Bell 103/V.21 when
- answering
- b. if handshaking of all speeds failed, modem continuously recycles
- the handshaking procedure until the S7 timeout.
-
- 11. Added #E1 to display line condition status. You will have to drop
- down into command modem while you are on-line with a +++. Then type
- AT#E1. Your terminal software will display only the line starting
- with "*"
-
- CURRENT Signal to Recieve Retrain Retrain Fast Fast
- SPEED Noise Ratio Level Granted Requested RG RT
-
- * 16800 SN=XX.X RX=-XX.X RG=XX RT=XX FG=XX FT=XX
-
-
- 11. In voice play mode, the <DLE><FS> or <DLE><DC2>, resync symbol, resets
- the ADPCM coder and still maintain continuity in the voice play mode.
-
- note: * DLE = 0X10
- * DC2 = 0X12
- * DC4 = 0X14
- * CAN = 0X18
- * FS = 0X1C
-
-
-
-
- 13. New feature: Extended Distinctive Ringing
-
- Using Extended Distinctive Ring with ZFAX
-
- Extended Distinctive Ring (EDR) is a special feature designed for home single
- telephone line home use to receive fax or data calls without interference with
- regular voice calls. Most users when they install a fax/modem at home, would
- not subscribe to one extra telephone line just for occasionally fax or data
- calls; however, fax/data calls do come from time to time.
-
- If the user lets the fax/data software application answers the call, voice
- calls would be missed; on the other hand, if a person or answering machine
- answers the call, fax or data call would be either missed or the person who
- answer the call has to go run to the computer to get this call to connect to
- the proper application. Either way is not desirable.
-
- What EDR can do for users, once enabled with proper setting, are:
-
- 1. It can detect fax CNG tone without physically answering the call.
- Once the CNG tone is detected, the modem will report "RING" or
- "RING n" to the application software, thus the software can tell the
- modem to answer the call.
-
- 2. It can detect several DTMF tones without physically answering the
- call. The modem detects the DTMF tones, it will report "RING" or
- "RING n" to the software application.
-
- With these two functions, your ZyXEL can be installed with an answering
- machine or telephone set at home. In most cases, you would set the modem to
- not report regular rings so the software will not instruct the modem to answer
- the phone when it rings. When a call comes in, the answering machine will
- answer the phone and play a voice message. At this moment, the modem once
- detecting the ring signal has gone will start to listen to the line for CNG
- tone or DTMF tones.
-
- If the remote caller is an unattended fax machine which sends out CNG tones
- for a period of time, the modem will detect the CNG tone and report "RING" to
- software immediately. The software application can issue commands to answer
- the call and receive fax. If the remote caller is using a fax phone which
- does not send out CNG tones and the caller is waiting for a fax answer tone in
- order to press "START" buttom, the caller can then press a designate DTMF tone,
- which will activate modem to report and consequently answer the fax call.
-
- This is just one of the applications that EDR can be utilized. We have
- designed many different ways to set the modem up not only to cover the basic
- usage but also for different extended applications.
-
-
-
- Setting Up EDR
-
- The new EDR can be used at home where multiple phones are installed parallel
- (normal home telephone set-up with at least 1 extension). Once this function
- is enabled, the modem will go into EDR mode after the ring disappears, where
- it will be able to detect CNG, *, 0, # and reports them as different types of
- ring.
-
- S-registers:
-
- S51 bit 2-0
- 000 EDR disabled
- 001 EDR enabled, single "RING" or "RING n" will be reported
- 010 EDR enabled, "RING" or "RING n" will be reported twice
- 011 EDR enabled, "RING" or "RING n" will be reported 3 times
- 100 EDR enabled, "RING" or "RING n" will be reported 4 times
- :
- :
- 111 EDR enabled, "RING" or "RING n" will be reported 7 times
-
- S51 bit 5-3
- 000 Disable CNG tone detection
- 001 Enable CNG tone detection, reports as "RING"
- 010 Enable CNG tone detection, reports as "RING 1"
- 011 Enable CNG tone detection, reports as "RING 2"
- :
- :
- 111 Enable CNG tone detection, reports as "RING 6"
-
- S40 bit 6-3
- 0000 To disable DTMF tone detection for EDR
- xxx1 To enable "*" detection, and reported as "RING"
- xx1x To enable "0" detection, and reported as "RING 1"
- or "RING" if only one type is enabled
- x1xx To enable "#" detection, and reported as "RING 2"
- or "RING" if only one type is enabled
- 1xx0 To enable "*" detection, and reported as "RING 3"
- (xxx1 has priority).
- You can enable more than one type by turning on more than one of the
- 3 bits.
-
- EDR detection (either CNG or DTMF tone) will be disabled once it occurred.
- However, the customer's program might not answer because the sofware is
- waitng for a certain # of rings before it will answer. S51 bit 2-0 is used to
- control the # of ring that modem will report once CNG tone or DTMF is detected.
-
- The timing relationship between Caller ID (if enabled), EDR and the Ring
- detector are as follows:
-
-
- 1'st 2'nd 3'rd
- on off on off on
- ****--------****---------****------------------------------------
- 3s 3s 3s 3s s7 timeout
- +------+----+-------+----+------+----+---------------------+----
- CID/EDR RD EDR RD EDR RD EDR RD
-
- CID: Caller ID task
- RD : Ring Detector task
- SA : EDR task
-
- Please remember during EDR period, the auto baud function is disabled, issuing
- a command at different baud might cause the modem not to be able to response
- to any "AT" command. Any AT command (assuming the command is accepted) will
- also disable EDR function right away.
-
- Application Example
-
- Let's go back to the previous example where an answering machine is installed
- with a ZyXEL modem. Say we use ZFAX as our fax reception application, and we
- don't want it to answer the call unless it is a fax call. The way to set it
- up would be:
-
- 1. Set ZFAX to answer on 1 ring.
- 2. Set S51.0=1 to enable EDR and report "RING" once
- 3. Set S51.3=1 to enable CNG tone detection, and reports as "RING"
- 4. Set S40.4=1 to
- a. enable Distinctive Ring type 2; and therefor modem will not report
- normal ring, thus ZFAX will not answer call unless EDR reported
- b. enable DTMF tone "0" detection, and reports as "RING" in case the
- remote fax machine does not generate CNG tone. In your answering
- machine message you can ask fax call to press "0" if he (she) wants
- to send a fax
- 5. Save the settings in a profile and reset the modem from this profile:
- AT&W0Z0 for example.
-