If allowed, users may place calls using an IP path. The system accepts user dialed digits as the IP address for the called party. When dialing an IP call, the asterisk, ‘*’, is used as the “dot” between bytes of the IP address.
Operation iPECS Phone To place an IP Call
1. Lift the handset or press the [SPEAKER] button.
2. Press {IP GRP} button or dial IP Group access code.
3. Dial ‘xxx * xxx * xxx * xxx’, use ‘*’ as the dot in the IP address.
4. Press ‘#’ to complete dialing.
To place an IP Call
1. Lift the handset.
2. Dial IP Group access code.
3. Dial ‘xxx ‘*’ xxx ‘*’ xxx ‘*’ xxx’, use ‘*’ as the dot in the IP address.
4. Press ‘#’ to complete dialing.


Dual Tone Multi-Frequency (DTMF) signals are used with CO lines assigned for DTMF signaling. The duration of the DTMF signal can be adjusted from 40 to 990 milliseconds.
Operation System Operation of this feature is automatic when programmed.
1. The system mutes the user’s voice transmission to reduce interference while sending DTMF


This feature allows an Alternate answer point while the Attendant station is in an unavailable mode. When in the unavailable mode, the next available Attendant in the Attendant group will receive Attendant calls and recalls.
Operation Attendant To assign a flexible button to activate {ALT ATD} button [PGM] + {FLEX} + ‘562’ + [SAVE]
To toggle Attendant Unavailable feature
1. Dial ‘562’, the Alternate Attendant code or press {ALT ATD}.
1. Alternate Attendant activates the DND feature at the Attendant station and affects all calls to the Attendant station.
2. A Flex button can be assigned to activate Alternate Attendant. The {ALT ATTENDANT} button LED indicates the status of the Alternate Attendant feature, On: Attendant unavailable.
3. A station, which is receiving calls forwarded from the System Attendant, cannot use the Alternate Attendant feature.
4. All except for one attendant can activate Alternate Attendant. When the last Attendant attempts to activate this feature, error tone is received.
5. An Attendant forwarded to an unavailable Attendant is also considered to be in the unavailable Attendant mode.
6. When there is a queued Attendant call, unavailable Attendant stations [HOLD] button will flash but no audible ring is provided and the station cannot retrieve the call. When an Attendant changes from unavailable to available status, any queued Attendant calls will be available to the Attendant.


All SLT devices will receive a “Stutter” dial tone as an audible Message Wait Indication. In addition, industry standard Message Waiting telephones may be connected to the system. Software will cause the lamp to flash when a messaging is waiting.
Operation System The system switches the 90 VDC lamp On and Off for assigned SLTs indicating a Message Wait.
1. The system switches a 90 VDC supply On and Off to flash the SLT’s neon lamp.
2. Although the SLT Battery Feed is removed during the 90 VDC On cycle, the system will recognize an SLT Off-hook event.
3. The SLT must incorporate a 90 VDC neon lamp that is connected directly across the tip and ring of the voice network

Code Restriction Override/Toll Restriction

Code Restriction Override/Toll Restriction
Code Restriction Override/Toll Restriction Override lets a user temporarily bypass the Code Restriction for an extension. This helps a user that must place an important call that Code Restriction normally prevents. For example, you could set up Code Restriction to block 100 calls and then provide a Code Restriction Override code to your attendant and executives. When the attendant or executive needs to place a 100 call, they just:
• Press Speaker key, dial a service code, and enter their override code.
• Press Speaker key and dial a trunk access code (e.g., 9 or # 9 002).
• Place the 100 call without restriction.
You can assign a different Code Restriction Override code to each extension. Or, extensions can share the same override code.
Code Restriction Override overrides all Code Restriction programming. Walking Code Restriction allows you to assign a Code Restriction level for each user. When a call is placed using Walking Code Restriction, the restriction for the call is based on the Code Restriction level defined in PRG 21-05-xx and PRG 21-06-xx.
• Off-Premise notification and external extensions require access to outside lines.
• In the Class heading in the SMDR report, POTA indicates that the call was placed using Temporary Code Restriction Override.
• Code Restriction Override and Walking Code Restriction temporarily overrides an extension Code Restriction.
• Users will hear, “Your call cannot go through. Please call the operator” when they dial a number that Code Restriction prevents.


Broker Call allows an SLT user to engage in two (2) calls, alternating between the two parties, so that the conversation with each party is private.
There are two types of Broker Call, Transfer and Camped On. Transfer Broker Call: 2nd Call is originated by SLT user. Camped On Broker Call: 2nd Call is delivered to the SLT through a Camp-On.
Operation SLT
To activate a Transfer Broker Call
1. Make or receive an intercom or external call.
2. Momentarily press the hook-switch, intercom dial tone received and active call is placed in Exclusive hold state.
3. Place second call.
4. To alternate between calls momentarily press the hook-switch.
To activate a Camp-On Broker Call
1. Make or receive an intercom or external call.
2. Receive a Call Waiting/Camp-On tone.
3. Momentarily press the hook-Switch, intercom dial tone received and the active call is placed on Exclusive Hold.
4. Dial the Camp-On Answer feature code ‘600’, camped on call is connected
To alternate between the calls
1. Momentarily press the hook-switch.
2. Dial the Camp-On Answer feature code ‘600’.
1. After a hook-switch flash, if the call results in an error, busy, no answer or an abnormal state, the SLT user may momentarily press hook-switch to retrieve the held call.
2. During a Transfer Broker Call, if the SLT user goes on-hook, the Broker Call parties are connected completing a Call Transfer.
3. During a Transfer Broker Call, if the active caller disconnects from the SLT user, the held party, if another station, is connected to the SLT. If the held party is an CO/IP call, the SLT user receives error tone and may go on-hook to receive recall and retrieve the held call
4. During a Camp-On Broker Call, if the SLT user goes on-hook, the active call is disconnected and the held call recalls to the SLT.


When a call is sent to a Voice mailbox, the associated station can be assigned to notify the user and allow the user to screen the call. Two methods of notification and call screening are provided, Ring or Speaker mode.
In the Ring mode, the user is notified by flashing of the AME (Answering Machine Emulation) Flex button. The user may press the Flex button to hear the caller as the voice message is stored. In the Speaker mode, when the call is sent to the Voice Mailbox, the caller’s voice is automatically broadcast over the speaker of the user’s iPECS Phone.
The user may terminate the screening leaving the caller in voice mail to record a message, talk with the caller and record the conversation in the mailbox, or answer the call and disconnect the Voice Mail.
The user’s iPECS Phone must be assigned with an AME Flex button for proper operation.
Operation iPECS Phone To assign an {AME} button: Ring Mode
[PGM] + {FLEX} + ‘564’ + ‘0’ + [SAVE] Speaker Mode
[PGM] + {FLEX} + ‘564’ + ‘1’ + [SAVE]

Flexible System Numbering

Flexible System Numbering
Flexible System Numbering lets you reassign the system port-to-extension assignments. This allows an employee to retain their extension number if they move to a different office. In addition, factory technicians can make comprehensive changes to your system number plan. You can have factory technicians:
• Set the number of digits in internal (Intercom) functions. For example, extension numbers can have a maximum of 8 digits.
• Change your system Service Code numbers.
• Assign single digit access to selected Service Codes.
Talk to your sales representative to find out if this program is available to you.
You can also use Flexible System Numbering to change the system Trunk Group Routing code. Although the default code of 9 is suitable for most applications, you can alter the code if needed.
The system provides a completely flexible system numbering plan. Refer to the chart below and the SL1100 Programming Manual for more details.
Flexible System

Programmable Function Keys

Programmable Function Keys
Each Multiline Terminal has Programmable Function Keys. Programmable Function Keys simplify placing calls, answering calls and using certain features. You can customize the function of a Multiline Terminal programmable keys from each Multiline Terminal. Depending on your telephone style, you can have up to 24 Programmable Function keys.
•When a key is programmed using service code 752, that key cannot be programmed with a function using the 751 code until the key is undefined (000). For example with a Park Key programmed by dialing 752 + *04 must be undefined by dialing 000 before it can be programmed as a Voice Over key by dialing 751 + 48.
•Using PRG 92-01 to copy a Multiline Terminal Programmable Function Keys, copies all the keys whether or not they exist on the telephone to which the programming is being copied. This may cause confusion when trying to define a key which is already defined but which does not exist on the telephone (displays as DUPLICATE DATA). It is recommended to either clear these non-existent keys or to copy only from an extension which has the same or fewer number of keys than the extension to which the programming is being copied.
•Speed Dialing and One-Touch Calling also offer quick access to calls and features.
•Programming a 60-button console requires separate programming.
•Below shows example of function key and LCD display indication (PRG 15-07-01 Function Key Assignment).
mber FunctionDisplay
00None[All Blank] 01DSS/One-TouchDSS/ONE TOUCH 02Microphone Key (ON/OFF)MIC KEY 03DND KeyDND KEY 04BGM (ON/OFF)BGM 05HeadsetHEADSET 07Conference KeyCONFERENCE 10Call Forward - ImmediateCALL FORWARD 11Call Forward - BusyTRANSFER-BUSY 12Call Forward - No AnswerTRANSFER-NO ANS 13Call Forward - Busy/No AnswerTRANSFER-BUSY/NO ANS 14Call Forward - Both RingCALL FWD-DUAL RING 15Follow MeFOLLOW ME
If a key is programmed as a DSS/One-Touch key for a station that is set for Call Forward All Calls or Do Not Disturb, the DSS/One-Touch key flashes.
Refer to the SL1100 Programming Manual for a complete list of Function Numbers.
•One-Touch keys programmed for Park Hold Service Code cannot be used to park calls without using Hold or Transfer.
•Pauses can be entered in the dial string of a DSS/One Touch key. The pause is entered as P in the dial string and causes the system to wait three seconds before sending the rest of the digits that follow the P (pause). Multiple pauses can be entered.
•The @ can be entered in the dial string of a DSS/One Touch key. The @ only applies to ISDN and Intercom calls. When using the @, the system waits for the destination to answer (answer supervision), and then sends the rest

Abbreviated Dialing

Abbreviated Dialing/Speed Dial SSSS Account Code Forced/Verified/Unverified SSSS Account Code Entry SSSS Alarm SSSS Alarm Reports SSES Alphanumeric Display SSSS Analog Communications Interface (ACI) SSSS Ancillary Device Connection SSSS Answer Hold/Automatic Hold SSSS Attendant Call Queuing SSSS Automatic Call Distribution (ACD) N/ASSS Automatic Release SSSS Automatic Route Selection (ARS/F-Route) SSSS Background Music SSSS Barge-In SSSS Battery Backup - System Memory SSSS Battery Backup - System Power SSSS Built-in Automated Attendant SSSS Call Arrival (CAR) Keys SSSS Call Duration Timer SSSS Call Forwarding SSSS Call Forwarding with Follow Me SSSS Call Forwarding, Off-Premise SSSS Call Forwarding/Do Not Disturb Override SSSS Call Monitoring SSSS Call Redirect SSS

Off-Duty Mode

Off-Duty Mode
Off-Duty Mode temporarily logs-out an ACD agent's phone. There are two types of Off-Duty Mode:
Manual Off-Duty Mode
An ACD Agent can enable Manual Off-Duty Mode anytime they want to temporarily log out of the ACD Group. They might want to do this if they go to a meeting or get called away from their work area. While logged out, calls to the ACD Group will not ring the agent's phone.
Automatic Off-Duty Mode
When an ACD Group has Automatic Off-Duty Mode, the system will automatically put an agent's telephone in Off-Duty Mode if it is not answered. This ensures callers will not have to wait while ACD rings an extension that won't be answered. For multiline terminals, the system enables Automatic Off-Duty Mode for all phones with Off-Duty Mode keys. For single line telephones, you must set an option in programming to enable Automatic Off-Duty Mode

Telephone keys

IP4WW-( )*TXH-B TEL Call Indicator Lamp
Exit Key
Exit any screen and return the display to “Time & Date”.

This lamp flashes fast when a call is ringing and flashes slower when a message has been left.
Alphanumeric Display
The LCD has 3 lines, 24 characters with backlight.
Soft Keys
The Soft Keys show the available features for your current activity. Any feature shown at the bottom of the LCD is available.
Help Key
The user can press this key followed by a programmable key to check what Line or Programmable Feature is assigned on the key.
Programmable Function Keys
Flexible Line keys or Feature Keys assigned by the System Administrator.
Flash Key
Press key to finish an outside call and hear the dial tone.
Transfer Key
Allows the extension user to transfer established calls to another extension.
DND Key (Do Not Disturb)
Setup a Do Not Disturb if pressed during a call. Mute (Microphone) Key
Mute handset or Handsfree Microphone. LED lights when microphone is muted.
Clear/Back Key
Press this key to cancel the current action or delete a character.
Cursor Key
Access various features with simple operation.
Volume (UP) Key

Dial Keys HOLD Key
Press this key to place an internal or external call on hold.
Speaker Key
Incoming Call History Key
Controls the built-in speaker, which can be used for Handsfree dialing/ monitoring. LED on key lights when key is active. Enter
* 12 Programmable Function Keys are available for IP4WW-12TXH-B TEL. 24 Programmable Function Keys are available for IP4WW-24TXH-B TEL.
** The illustration shows IP4WW-24TXH-B TEL.
Redial Key
Directory Functions