Yealink SIP-T54S User manual

Using Enhanced DSS Keys on Yealink IP Phones
1
Using Enhanced DSS Keys on Yealink IP Phones
This guide provides detailed information for system administrators on how to set up enhanced
DSS keys (EDK) on Yealink IP phones.
The features introduced in this guide apply to Yealink SIP-T54S, SIP-T52S, SIP-T48G/S,
SIP-T46G/S, SIP-T42G/S, SIP-T41P/S, SIP-T40P, SIP-T40G, SIP-T29G, SIP-T27P/G, SIP-T23P/G,
SIP-T21(P) E2, SIP-T19(P) E2 and CP860 IP phones running firmware version 81 or later.
Introduction
Enhanced DSS Keys (EDK) enables users to customize the functions of a phone’s DSS keys (line
keys, programmable keys and ext keys) and assign functions to custom soft keys. You can use
EDK to assign frequently-used function to DSS keys and custom soft keys or to create menu
shortcuts to frequently-used phone settings as needed.
The following shows the line keys and soft keys on SIP-T46G IP phones:
Note
Application scenarios involve the following:
Adding new DSS keys or soft keys to simplify the operation of common telephony tasks
that may need more than one key press with the default configuration.
Removing certain default DSS keys or soft keys for the functions that may be redundant
or never used.
EDK provides a method of creating interactive macro call sequences that can be executed by the
The line keys are not applicable to SIP-T19(P) E2/CP860 IP phones. The ext keys are only
applicable to SIP-T54S/T52S/T48G/T48S/T46G/T46S/T29G/T27P/T27G IP phones. And to
customize the functions for ext keys, you have to connect the expansion module to the IP phone
in advance.

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phone.
The interactivity involves the following actions:
Gather input data from the phone's user.
Send SIP signaling requests to a call server (INVITE or REFER).
Cause the phone to perform certain operations such as hang-up a call or place a call on
hold.
Emulate a key press on the phone.
Understanding Macro Action Strings
The DSS keys and custom soft keys can be defined by the following macro action strings:
1. Digits
2. $C<command>$
3. $T<type>$
4. $M<macro>$
5. $S<softkey ID>$
6. $K<key name>$
7. $I<menu item ID>$
8. $P<label>&C<characters number allowed>&N&M$
9. $P<prompt num>N<num digits>$
10. $L<label>$
11. $LED<color and time>&L<label>$
Macro Action
Description
Digits
The digits to be sent. You can use only *, #, +, 0-9. The
appearance of this parameter depends on the action
string.
Example: *981135.
$C<command>$
This is the command. It can appear anywhere in the
action string. Supported commands (or shortcuts)
include:
hang up (hu)
hold (h)
waitconnect (wc)
pause <number of seconds> (p <num sec>) where
the maximum value is 10
Example: 4411$Cwc$$Cp10$ defines dialing
4411>>waitconnect>>connected and lasts 10 seconds.

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Macro Action
Description
$T<type>$
The embedded action type. Multiple actions can be
defined. Supported action types include:
invite
dtmf
refer
intercom (not applicable to CP860 IP phones)
Example: *338$Tdtmf$ defines sending the *338 by the
type of dtmf.
Note: We recommend that you always define this field.
If it is not defined, the supplied digits are dialed using
INVITE.
$M<macro>$
The embedded macro. The <macro> string must begin
with a letter. If the macro name is not defined, the
execution of the action string will be ignored.
Example: $MAA$ means invoking the EDK macro AA.
$S<softkey ID>$
The functionality of performing this action is the same
as that of pressing the desired soft key.
Each soft key has a unique identifier on the IP phone,
you can configure this parameter according to the
system-defined softkey ID. If the softkey ID is not
defined on the phone or there is no matched soft key on
the current screen, the execution of the action string will
be ignored. The softkey ID is case-insensitive.
Example: $Sanswer$ means pressing the Answer soft
key.
Yealink IP phones support customizing soft keys. When
invoking a custom soft key, the prefix “#” must be
added.
Example: If the custom softkey label is IVR1, the custom
softkey ID is custom_macro, then
$S#custom_macro$ means pressing the IVR1 soft key.
Note: To view the softkey ID, you can configure the
value of the parameter “edk.id_mode.enable” to 1
(Enabled) and then long press the Volume Up key when
the phone is idle. For more information, refer to
Configuring EDK ID Mode.
$K<key name>$
The functionality of performing this action is the same
as that of pressing the desired hard key.

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Macro Action
Description
Supported key names include:
LineKeyX (for SIP-T48G/S, X=1-29; for
SIP-T54S/T46G/T46S/T29G, X=1-27; for
SIP-T42G/T42S/T41P/T41S, X=1-15; for
SIP-T52S/T27P/T27G, X=1-21; for
SIP-T40P/T40G/T23P/T23G, X=1-3; for SIP-T21(P)
E2, X=1-2).
SoftKeyX (X ranges from 1 to 4)
ArrowUp
ArrowDown
ArrowLeft
ArrowRight
VolDown
VolUp
Cancel
OK
DialPadX (X ranges from 0 to 9)
DialPadPound
DialPadStar
Headset
Mute
Message
Hold
Redial
Transfer
Speaker
Conference
ExtX@Y (X stands for the serial number of
expansion module key, Y stands for the serial
number of expansion module; For
SIP-T48S/T48G/T46S/T46G/T29G: X ranges from 1
to 40, Y ranges from 1 to 6; For SIP-T54S/T52S: X
ranges from 1 to 60, Y ranges from 1 to 3; @Y can
be omitted if there is only one expansion module
connected to the phone.)
Menu (You can enter menu by executing this
command at any interface except the
non-executable situations. For example, entering

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Macro Action
Description
menu is blocked during an active call.)
Home (You can return back to idle screen by
executing this command at dialing screen for
SIP-T48G/S IP phones)
Example: $KDialPadPound$ means pressing the pound
key.
Note: If a key (e.g., Redial key) is not found but the
function is available, perform the corresponding action.
If a key is not found and the function is unavailable, the
execution of the action string will be ignored.
$I<menu item ID>$
The action to position and enter the desired menu item.
Each menu item has a unique identifier on the IP phone,
you can configure this parameter according to the
system-defined menu item ID. If the menu item ID is not
defined on the phone or there is no matched menu item
on the current screen, the execution of the action string
will be ignored. The menu item ID is case-insensitive.
Example: $Istatus_list& means entering the Status
menu.
Note: To view the menu item ID, you can configure the
value of the parameter “edk.id_mode.enable” to 1
(Enabled) and then long press the Volume Up key when
the phone is idle. For more information, refer to
Configuring EDK ID Mode.
$P<label>&C<characters
number allowed>&N&M$
The user input prompt string. Enable to prompt the
pop-up box, specify the label for the input box, specify
the maximum input characters, specify the character
type for the input box, and specify whether to mask the
input by the “*”.
“label” means the specified label for pop-up box.
“characters number allowed” defines the maximum
number of input characters.
If &N is included, the character type is Number (default
input method: 123). If &N is not included, the character
type is Text (default input method: abc), you can
manually change input method.
If &M is included, the input are masked by the “*”.
Example: $PEnter name&C3&N&M means prompting
an Enter name pop-up box, the maximum number of
input characters is 3, the input type is Number, and the

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Macro Action
Description
input is masked by the “*”.
$P<prompt num>N<num
digits>$
This is a macro substitution string.
“prompt num” means which EDK prompt is invoked. It
indicates the X as defined by “edk.edkprompt.X.enable”.
“num digits” defines the number of digits or letters that
the user can enter. The user needs to press the Enter
soft key to complete data entry.
Example: $P2N5$ means invoking the EDK prompt 2
and inputting 5 characters at most.
Note: It works only if the EDK prompt has been
configured in advance. For more information, refer to
Defining an EDK Macro.
$L<label>$
This is the label for the entire operation. The value can
be any string including the null string (in this case, no
label displays).
This label is used if no label is configured for a Custom
Key or soft key, otherwise this one is ignored. Make this
the first entry in the action string.
Example: $LEDK2$1234$Tinvite$ defines calling out
the number 1234 and using the label “EDK2” for a
Custom Key or soft key.
$LED<color and
time>&L<label>$
(not applicable to SIP-T19(P) E2
IP phones)
The status of the BLF/BLF list key LED. Enable to specify
the LED color for the BLF/BLF list key, and specify the
duration time (in milliseconds) for the corresponding
status of the BLF/BLF list key. The valid value of the
duration time ranges from 100 to 60000ms.
Can be composed of multiple combination of “color”
and “time”. The status will be stuck in an infinite loop
until triggered by other macros.
Supported colors include (must be lowercase):
r (red)
ri (red; red with incoming mark for SIP-T48G/S)
ro (red; red with outgoing mark for SIP-T48G/S)
g (green)
gi (green; green with incoming mark for
SIP-T48G/S)
go (green; green with outgoing mark for
SIP-T48G/S)

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Macro Action
Description
o (off)
&L<label> (Optional.): You have to put the “&L<label>”
last in the command flow.
Example: $LEDg1000o100r300&Lidle$ means an
infinite loop for BLF/BLF list key LED status: grow green
for 1000ms, be in the off state for 100ms and then glow
red for 300ms. At the same time, the label of the
BLF/BLF list key is changed to “idle”.
Note: The last “color” can be configured without “time”,
and it means permanently displaying the last color until
triggered by other macros. This macro can be only used
for BLF/BLF list feature.
Defining an EDK Macro
Before using EDK, you must be familiar with macro language shown in this section. For more
information, refer to Understanding Macro Action Strings.
Using the Enhanced DSS Keys (EDK) List parameters to define a macro is optional and is useful
when defining more than one soft key or DSS key.
The Enhanced DSS Keys (EDK) Prompt parameters must be used if interactivity with user is
implemented as part of any macro. If an EDK macro attempts to use a prompt that is disabled,
the macro execution will be ignored. A prompt is not required for every macro.
To configure EDK macro using configuration files:
1. Add/Edit EDK macro parameters in the configuration file (e.g., features.cfg).
The following table lists the information of parameters:
Parameters
Permitted Values
Default
Enhanced DSS Keys (EDK) Parameter
features.enhanced_dss_keys.enable
0 or 1
0
Description:
It enables or disables the Enhanced DSS Keys (EDK) feature.
0-Disabled
1-Enabled
Enhanced DSS Keys (EDK) List Parameters

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Parameters
Permitted Values
Default
edk.edklist.X.enable
(X ranges from 1 to 255)
0 or 1
0
Description:
It enables or disables the Enhanced DSS Keys (EDK) macro X.
0-Disabled
1-Enabled
Note: It works only if the value of the parameter “features.enhanced_dss_keys.enable”
is set to 1 (Enabled).
edk.edklist.X.mname
(X ranges from 1 to 255)
String
Blank
Description:
It configures the unique identifier used by the soft key or DSS key configuration to
reference the enhanced DSS keys entry for macro X.
It cannot start with a digit. This parameter must have a value, it cannot be left blank.
Note: If there are two or more same macros, the soft key or DSS key will invoke the
macro with a smallest value of X. It works only if the value of the parameter
“features.enhanced_dss_keys.enable” is set to 1 (Enabled).
edk.edklist.X.action
(X ranges from 1 to 255)
String
Blank
Description:
It configures the action string that contains a macro definition of the action that the
softkey or DSS key performs.
This parameter must have a value, it cannot be left blank. For a list of macro definitions
and example macro string, refer to Understanding Macro Action Strings.
Note: It works only if the value of the parameter “features.enhanced_dss_keys.enable”
is set to 1 (Enabled).
Enhanced DSS Keys (EDK) Prompt Parameters
edk.edkprompt.X.enable
(X ranges from 1 to 10)
0 or 1
0
Description:
It enables or disables the Enhanced DSS Keys (EDK) prompt X.
0-Disabled
1-Enabled

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Parameters
Permitted Values
Default
Note: If a macro attempts to use an EDK prompt that is disabled, the macro execution
will fail. It works only if the value of the parameter
“features.enhanced_dss_keys.enable” is set to 1 (Enabled).
edk.edkprompt.X.label
(X ranges from 1 to 10)
String
Blank
Description:
It configures the prompt text to be displayed on the Enhanced DSS Keys (EDK) prompt
X screen.
If it is left blank, no prompt displays.
Note: It works only if the values of the parameters
“features.enhanced_dss_keys.enable” and “edk.edkprompt.X.enable” are set to 1
(Enabled).
edk.edkprompt.X.type
(X ranges from 1 to 10)
text or numeric
text
Description:
It configures the type of characters entered by the user for Enhanced DSS Keys (EDK)
prompt X.
If it is set to numeric, the default input method is 123, and you can switch to
abc/ABC/2aB input method.
If it is set to text, the default input method is abc, and you can switch to ABC/2aB/123
input method.
Note: It works only if the values of the parameters
“features.enhanced_dss_keys.enable” and “edk.edkprompt.X.enable” are set to 1
(Enabled).
edk.edkprompt.X.userfeedback
(X ranges from 1 to 10)
visible or masked
visible
Description:
It configures the user input feedback method for Enhanced DSS Keys (EDK) prompt X.
If it is set to visible, the entered text is visible.
If it is set to masked, the entered text displays as asterisk characters (*). It can be used
to mask password fields.
Note: It works only if the values of the parameters
“features.enhanced_dss_keys.enable” and “edk.edkprompt.X.enable” are set to 1
(Enabled).
The following shows an example of EDK macro configuration in the configuration file:

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features.enhanced_dss_keys.enable = 1
edk.edklist.1.enable = 1
edk.edklist.1.mname = IVR1
edk.edklist.1.action =
10086$Tinvite$$Cwaitconnect$$P5N4$$Tdtmf$$Cpause2$4$Tdtmf$$Cpause1$2$Tdtmf$
edk.edkprompt.5.enable = 1
edk.edkprompt.5.label = PIN Code
edk.edkprompt.5.type = numeric
edk.edkprompt.5.userfeedback = masked
2. Reference the configuration file in the boot file (e.g., y000000000000.boot).
Example:
include:config “http://10.2.1.158/HTTP Directory/features.cfg”
3. Upload the boot file and configuration file to the root directory of the provisioning server.
4. Trigger IP phones to perform an auto provisioning for configuration update.
For more information on auto provisioning, refer to the latest Auto Provisioning Guide for
your phone on Yealink Technical Support.
Then you can configure a soft key or DSS key to invoke the EDK macro (refer to Configuring
Custom Soft Keys or Configuring DSS Keys). When the macro is triggered, the phone will
prompt for the PIN code, input and save it; then dial out 10086 using the default account; send
the PIN code (by the type of dtmf) after connected; wait 2 seconds, then send 4 (by the type of
dtmf); wait 1 second, then send 1 (by the type of dtmf).
Configuring EDK ID Mode
You can view the softkey ID or menu item ID when defining EDK macros by long pressing the
Volume Up key.
To configure EDK macro using configuration files:
1. Add/Edit EDK macro parameters in the configuration file (e.g., features.cfg).
The following table lists the information of parameters:
Parameters
Permitted Values
Default
features.enhanced_dss_keys.enable
0 or 1
0
Description:
It enables or disables the Enhanced DSS Keys (EDK) feature.
0-Disabled
1-Enabled

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Parameters
Permitted Values
Default
edk.id_mode.enable
0 or 1
0
Description:
It enables or disables to view the softkey ID or menu item ID by long pressing the
Volume Up key.
0-Disabled
1-Enabled
If it is set to 1 (Enabled), you can view the softkey ID or menu item ID by long pressing
the Volume Up key for three seconds at any interface.
Note: The menu item ID displays on the status bar of the phone. Long pressing the
Volume Up key for three seconds to exit. It works only if the value of the parameter
“features.enhanced_dss_keys.enable” is set to 1 (Enabled).
The following shows an example of EDK macro configuration in the configuration file:
features.enhanced_dss_keys.enable = 1
edk.id_mode.enable = 1
2. Reference the configuration file in the boot file (e.g., y000000000000.boot).
Example:
include:config “http://10.2.1.158/features.cfg”
3. Upload the boot file and configuration file to the root directory of the provisioning server.
4. Trigger IP phones to perform an auto provisioning for configuration update.
For more information on auto provisioning, refer to the latest Auto Provisioning Guide for
your phone on Yealink Technical Support.

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The following screenshots show examples for displaying the softkey ID and menu item ID on
SIP-T46G IP phone when long pressing the Volume Up key:
Softkey ID:
Menu Item ID:
Configuring Custom Soft Keys
You can assign functions to custom soft keys using macros. For more information on macro
action strings and how to define an EDK macro, refer to Understanding Macro Action Strings
and Defining an EDK Macro. This feature is typically used to access frequently-used functions; or,
if your phone does not have a particular hard key, you can create a soft key. For example, if the
phone does not have an intercom hard key, you can create an intercom soft key.
If you have configured custom soft keys, the custom soft keys will display with the default soft
keys and the original softkey layout may change.
Custom soft keys can be added in the following call states:
Idle - There are no active calls on the phone.
Alerting (or ringing) –There is an incoming call on the phone.
Connecting –There is an outgoing call on the phone. And the call is connecting.
Transfer connecting –There is a call being transferred to another phone. And the call is
connecting.
Talk –There is an active call on the phone.

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Call failed –The outgoing call encounters a failure.
Ring back - There is an outgoing call on the phone. And the phone is in the ringback state.
Transfer ring back - There is a call being transferred to another phone. And the phone is
in the ringback state.
Hold –The call is placed on hold on the phone.
Held –The call is held.
Conference –The phone sets up a conference call.
Dial tone –You can hear a dial tone. But there are no numbers entered.
Dialing –The phone is on the dialing screen. That is, the entered numbers are not dialed
out.
To configure the soft keys using configuration files:
1. Add/Edit soft key parameters in the configuration file (e.g., features.cfg).
The following table lists the information of parameters:
Parameters
Permitted Values
Default
features.enhanced_dss_keys.enable
0 or 1
0
Description:
It enables or disables the Enhanced DSS Keys (EDK) feature.
0-Disabled
1-Enabled
softkey.X.enable
(X ranges from 1 to 10)
0 or 1
0
Description:
It enables or disables the custom soft key X.
0-Disabled
1-Enabled
Note: It works only if the value of the parameter “features.enhanced_dss_keys.enable”
is set to 1 (Enabled).
softkey.X.label
(X ranges from 1 to 10)
String
Blank
Description:
It configures the text displayed on the soft key label.
Note: It works only if the values of the parameters
“features.enhanced_dss_keys.enable” and “softkey.X.enable” are set to 1 (Enabled).

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Parameters
Permitted Values
Default
softkey.X.position
(X ranges from 1 to 10)
Integer from 0 to 10
0
Description:
It configures the position on the LCD screen for soft key X.
If it is set to 0, the soft key X is positioned in the first empty position from the left.
If it is set to a value that is greater than the number of the soft keys, a More soft key
appears and the soft key X is positioned in the desired position from the left. The
original soft key moves to the next space, and so forth.
Note: It works only if the values of the parameters
“features.enhanced_dss_keys.enable” and “softkey.X.enable” are set to 1 (Enabled).
softkey.X.action
(X ranges from 1 to 10)
String
Blank
Description:
It configures the action or function for custom soft key X.
This value uses the same macro action string syntax as an Enhanced DSS key. For a list
of macro definitions and example macro string, refer to Understanding Macro Action.
You can also invoke the EDK macro that was already defined. The macro name follows
the character “!”. e.g., softkey.1.action = !IVR1; IVR1 stands for the macro name.
Note: It works only if the values of the parameters
“features.enhanced_dss_keys.enable” and “softkey.X.enable” are set to 1 (Enabled).
softkey.X.softkey_id
(X ranges from 1 to 10)
String
Blank
Description:
It configures the softkey ID for custom softkey X.
Note: It works only if the values of the parameters
“features.enhanced_dss_keys.enable” and “softkey.X.enable” are set to 1 (Enabled). To
distinguish the custom softkey ID and system-defined softkey ID, the custom softkey
ID displayed on the LCD screen will add a “#” prefix (e.g., #custom_macro1).
softkey.X.use.idle
(X ranges from 1 to 10)
0 or 1
0
Description:
It enables or disables the custom soft key X to be displayed in the idle state.
0-Disabled
1-Enabled

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Parameters
Permitted Values
Default
Note: It works only if the values of the parameters
“features.enhanced_dss_keys.enable” and “softkey.X.enable” are set to 1 (Enabled).
softkey.X.use.incoming_call
(X ranges from 1 to 10)
0 or 1
0
Description:
It enables or disables the custom soft key X to be displayed in the alerting (ringing)
state.
0-Disabled
1-Enabled
Note: It works only if the values of the parameters
“features.enhanced_dss_keys.enable” and “softkey.X.enable” are set to 1 (Enabled).
softkey.X.use.connecting
(X ranges from 1 to 10)
0 or 1
0
Description:
It enables or disables the custom soft key X to be displayed in the connecting state.
0-Disabled
1-Enabled
Note: It works only if the values of the parameters
“features.enhanced_dss_keys.enable” and “softkey.X.enable” are set to 1 (Enabled).
softkey.X.use.transfer_connecting
(X ranges from 1 to 10)
0 or 1
0
Description:
It enables or disables the custom soft key X to be displayed in the transfer connecting
state.
0-Disabled
1-Enabled
Note: It works only if the values of the parameters
“features.enhanced_dss_keys.enable” and “softkey.X.enable” are set to 1 (Enabled).
softkey.X.use.on_talk
(X ranges from 1 to 10)
0 or 1
0
Description:
It enables or disables the custom soft key to be displayed in the on talk state.
0-Disabled

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Parameters
Permitted Values
Default
1-Enabled
Note: It works only if the values of the parameters
“features.enhanced_dss_keys.enable” and “softkey.X.enable” are set to 1 (Enabled).
softkey.X.use.call_failed
(X ranges from 1 to 10)
0 or 1
0
Description:
It enables or disables the custom soft key to be displayed in the call failed state.
0-Disabled
1-Enabled
Note: It works only if the values of the parameters
“features.enhanced_dss_keys.enable” and “softkey.X.enable” are set to 1 (Enabled).
softkey.X.use.ring_back
(X ranges from 1 to 10)
0 or 1
0
Description:
It enables or disables the custom soft key X to be displayed in the ring back state.
0-Disabled
1-Enabled
Note: It works only if the values of the parameters
“features.enhanced_dss_keys.enable” and “softkey.X.enable” are set to 1 (Enabled).
softkey.X.use.transfer_ring_back
(X ranges from 1 to 10)
0 or 1
0
Description:
It enables or disables the custom soft key X to be displayed in the transfer ring back
state.
0-Disabled
1-Enabled
Note: It works only if the values of the parameters
“features.enhanced_dss_keys.enable” and “softkey.X.enable” are set to 1 (Enabled).
softkey.X.use.hold
(X ranges from 1 to 10)
0 or 1
0
Description:
It enables or disables the custom soft key X to be displayed in the hold state.
0-Disabled

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Parameters
Permitted Values
Default
1-Enabled
Note: It works only if the values of the parameters
“features.enhanced_dss_keys.enable” and “softkey.X.enable” are set to 1 (Enabled).
softkey.X.use.held
(X ranges from 1 to 10)
0 or 1
0
Description:
It enables or disables the custom soft key X to be displayed in the held state.
0-Disabled
1-Enabled
Note: It works only if the values of the parameters
“features.enhanced_dss_keys.enable” and “softkey.X.enable” are set to 1 (Enabled).
softkey.X.use.conferenced
(X ranges from 1 to 10)
0 or 1
0
Description:
It enables or disables the custom soft key to be displayed in the conference state.
0-Disabled
1-Enabled
Note: It works only if the values of the parameters
“features.enhanced_dss_keys.enable” and “softkey.X.enable” are set to 1 (Enabled).
softkey.X.use.dialtone
(X ranges from 1 to 10)
0 or 1
0
Description:
It enables or disables the custom soft key X to be displayed in the dial tone state.
0-Disabled
1-Enabled
Note: It works only if the values of the parameters
“features.enhanced_dss_keys.enable” and “softkey.X.enable” are set to 1 (Enabled).
softkey.X.use.dialing
(X ranges from 1 to 10)
0 or 1
0
Description:
It enables or disables the custom soft key X to be displayed in the dialing state.
0-Disabled
1-Enabled

Using Enhanced DSS Keys on Yealink IP Phones
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Parameters
Permitted Values
Default
Note: It works only if the values of the parameters
“features.enhanced_dss_keys.enable” and “softkey.X.enable” are set to 1 (Enabled).
The following shows an example of soft key configuration in the configuration file:
features.enhanced_dss_keys.enable = 1
softkey.1.enable = 1
softkey.1.label = LCR
softkey.1.position = 6
softkey.1.action = !IVR1
softkey.1.use.idle = 1
softkey.1.use.dialtone = 1
edk.edkprompt.1.enable = 1
edk.edkprompt.1.label = Intercom
edk.edkprompt.1.type = numeric
edk.edkprompt.1.userfeedback = visible
softkey.2.enable = 1
softkey.2.label = Intercom
softkey.2.position = 7
softkey.2.action = *64$P1N12$
softkey.2.use.idle = 1
softkey.2.use.dialtone = 1
2. Reference the configuration file in the boot file (e.g., y000000000000.boot).
Example:
include:config “http://10.2.1.158/features.cfg”
3. Upload the boot file and configuration file to the root directory of the provisioning server.
4. Trigger IP phones to perform an auto provisioning for configuration update.
For more information on auto provisioning, refer to the latest Auto Provisioning Guide for
your phone on Yealink Technical Support.

Using Enhanced DSS Keys on Yealink IP Phones
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The following screenshots show the user interface for SIP-T46G IP phone in the different states
when configured with example configuration file:
Idle State:
If you press the More soft key, the following screen appears:
Dial Tone Sate:
If you press the More soft key, the following screen appears:
Press the LCR soft key to perform the macro definition of the action IVR1
“10086$Tinvite$$Cwaitconnect$$P5N4$$Tdtmf$$Cpause2$4$Tdtmf$$Cpause1$2$Tdtmf$”.
Press the Intercom soft key to perform the macro definition of the action “*64$P1N12$”.
Configuring DSS Keys
You can assign functions to DSS keys using macros. For more information on macro action
strings and how to define an EDK macro, refer to Understanding Macro Action Strings and
Defining an EDK Macro.
To configure the DSS keys using configuration files:
1. Add/Edit DSS key parameters in the configuration file (e.g., features.cfg).

Using Enhanced DSS Keys on Yealink IP Phones
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The following table lists the information of parameters:
Parameters
Permitted Values
Default
features.enhanced_dss_keys.enable
0 or 1
0
Description:
It enables or disables the Enhanced DSS Keys (EDK) feature.
0-Disabled
1-Enabled
linekey.X.type/
programablekey.X.type/
expansion_module.X.key.Y.type
73
Refer to the
following
content
Description:
It configures a DSS key as a Custom Key on the IP phone.
The digit 73 stands for the key type Custom Key.
For line keys:
X ranges from 1 to 29 (for SIP-T48G/S)
X ranges from 1 to 27 (for SIP-T54S/T46G/T46S/T29G)
X ranges from 1 to 15 (for SIP-T42G/T42S/T41P/T41S)
X ranges from 1 to 21 (for SIP-T52S/T27P/T27G)
X ranges from 1 to 3 (for SIP-T40P/T40G/T23P/T23G)
X ranges from 1 to 2 (for SIP-T21(P) E2)
For programmable keys:
X=1-10, 12-14, 17-18 (for SIP-T54S/T48G/T48S/T46G/T46S)
X=1-10, 13, 17-18 (for SIP-T52S/T42G/T42S/T41P/T41S/T40P/T40G)
X=1-14, 17-18 (for SIP-T29G/T27P/T27G)
X=1-10, 14, 17-18 (for SIP-T23P/T23G/T21(P) E2)
X=1-9, 13, 14, 17-18 (for SIP-T19(P) E2)
X=1-6, 9, 13 (for CP860)
For ext keys:
For SIP-T54S/T52S:
X ranges from 1 to 3, Y ranges from 1 to 60.
For SIP-T48G/T48S/T46G/T46S:
X ranges from 1 to 6, Y ranges from 1 to 40.
For SIP-T29G/T27P/T27G:
X ranges from 1 to 6, Y ranges from 1 to 20, 22 to 40 (Ext key 21 cannot be