Karel NT421 Technical Reference And User's Manual

Brand
Karel
Model
NT421
Type
Technical Reference And User's Manual

Karel NT421: Feature-rich IP phone that seamlessly integrates with Karel's IP PBX systems. Enjoy crystal-clear voice communication over IP lines, leveraging cost savings and enhanced call quality.

Key Features:

  • Intuitive touch-colored screen for easy navigation and visual appeal.
  • Dual Ethernet ports for connecting to both the phone and a computer, extending internet access.
  • Bluetooth connectivity for hands-free communication and device pairing.
  • Advanced call features: call forwarding, call transfer, three-party conferencing, and call holding.
  • Customizable phonebook with a capacity of 128 numbers for quick dialing.

Karel NT421: Feature-rich IP phone that seamlessly integrates with Karel's IP PBX systems. Enjoy crystal-clear voice communication over IP lines, leveraging cost savings and enhanced call quality.

Key Features:

  • Intuitive touch-colored screen for easy navigation and visual appeal.
  • Dual Ethernet ports for connecting to both the phone and a computer, extending internet access.
  • Bluetooth connectivity for hands-free communication and device pairing.
  • Advanced call features: call forwarding, call transfer, three-party conferencing, and call holding.
  • Customizable phonebook with a capacity of 128 numbers for quick dialing.
IP SIP
TELEPHONE SET
TECHNICAL REFERENCE
AND
USER GUIDE
FEBRUARY- 2012
NT42I Technical Reference and User Guide
II
NT42I Technical Reference and User Guide
III
Version Table
Guide Date/Version
AAA/27.02.2012
NT42I Tech. Ref. and User Guide– Ver. AAA – 27.02.2012
KAREL reserves the right to make modifications in product features mentioned in this
document for development and improvement purposes, without prior notice. Individual
products may possess characteristics different from those that have been mentioned in this
document, due to their differences in software and hardware versions.
NT42I Technical Reference and User Guide
IV
ISSUES TO PAY ATTENTION TO
♦ Read this guide carefully before you use your device and keep it for later
reference.
♦ Any mistake with the connections in your device may damage it or your
exchange. Especially the connection to the exchange must be made by the
Authorized Technical Services. The explanations about connections in the User’s
Guide have been intended to give information only.
♦ A connection box comes with your device. The connections must be made as
described in the installation chapter.
♦ In case you need a connection of plug-outlet type, never apply electric plugs
and outlets; use plugs, outlets and connection components that are specific to
telephones.
♦ Do not make any connection other than the extension connection of the
KAREL telephone system.
♦ There is no part that you can repair or maintain in your device; therefore call
the authorized technical service in case of any malfunction.
♦ Keep your device away from direct sunlight.
♦ Do not let any liquid substance spill on your device.
♦ Do the exterior cleaning of your device with a slightly moistened piece of cloth.
♦ Do not apply any chemicals for cleaning.
♦ Please call your authorized dealer in case you would like to change the place
of your device. Use its own packing to carry the device.
♦ Please do not use exterior signal for the test operations or maintenance. Any
signal which is used externally may damage your device.
NT42I Technical Reference and User Guide
V
PREFACE
Chapters in this guide have been prepared in order to give basic information about the NT42I
IP Phones.
- The basic information about features of the phone has been given and the hardware
of the device is described.
- The keys required for basic use of the phone's are mentioned.
- The hardware requirements of the phone are mentioned and the connection details
are given.
- Required and alternative settings on the NT42I Phone Set are described for users.
- In case there is a problem, the information about points that must be considered is
given.
Best Regards,
KAREL
NT42I Technical Reference and User Guide
VI
CONTENTS
TECHNICAL INTRODUCTION ................................................................................................ 1
Basic Specifications of NT42I ............................................................................................... 1
Specifications of NT42I ........................................................................................................ 2
INTRODUCTION ...................................................................................................................... 3
Parts List on Delivery ........................................................................................................... 3
GENERAL APPEARANCE ...................................................................................................... 4
USER INTERFACE .................................................................................................................. 5
USE OF THE TOUCH SCREEN .......................................................................................... 5
NAVIGATION KEYS AND SPECIAL FUNCTION KEYS ...................................................... 5
PHYSICAL CONNECTIONS .................................................................................................... 7
NT42I NETWORK SETTINGS ................................................................................................. 8
NT42I WEB SETTINGS ......................................................................................................... 11
System Information ............................................................................................................ 11
Network Settings ................................................................................................................ 12
SIP Settings ........................................................................................................................ 13
PHOTO FRAME FEATURE ............................................................................................... 15
TROUBLESHOOTING ........................................................................................................... 16
NT42I Technical Reference and User Guide
1
TECHNICAL INTRODUCTION
BASIC SPECIFICATIONS OF NT42I
VoIP
Protocols • SIP v2.0 (RFC3261)
Call Features • Call Back – Calling the caller of last incoming call
• Call Blocking – Blocking all incoming calls
• Call Holding – Holding the existing conversation (10 incoming calls
can be put on hold simultaneously.)
• Call Transfer – (Selective Transfer/Direct Transfer)
• Call Forwarding – Forwarding incoming calls
• Automatic Answering
• Emergency Calls
• 3-Party Conference
Display Panel • Touch-colored screen
• Caller ID
• Display of simultaneous incoming calls
• Date and Time Displayer
Easy to Use
• Programming via WEB
• Installing software, configuration and phonebook over Web/TFTP
• Recall user settings when machine is restarted
• Backuping and re-installing phonebook, configuration and key
programming files. Installing prepared phonebook.
Keys • 4 navigation keys
• Volume control keys
• Numeric keys
Special Function Keys
Contacts
Call Log
Menu
Message
Redial
Conference
Park
Transfer
Function
Language • Turkish / English
Dimensions • Dimensions: 228 x 217 x 147 mm
• Weight: 960 gr.
Temperature • 5-40°C
Humidity • 0-%80
NT42I Technical Reference and User Guide
2
SPECIFICATIONS OF NT42I
Codecs
G.711A
G.711U
G.723
G.726 16 Kbps
G.726 24 Kbps
G.726 32 Kbps
G.726 40 Kbps
G.729
G.723 Ratio 5.3 Kbps
6.3 Kbps
LAN Protocols SIP v2.0
IP/TCP/UDP/RTP/RTCP/ICMP/ARP/RARP/SNTP
• TFTP Server
DHCP/DNS/SNTP Client
HTTP Server
Static/DHCP IP Assignment
NAT transversal
-STUN - NAT
DTMF • In-Band
• Out-of-Band DTMF (RFC2833)
• SIP Info
Voice Quality • VAD – Voice Activaty Detection
• AGC – Automatic Gain Control
• AEC– Acoustic ECHO Canceller
• Jitter Buffer
Tones • Ring tones – 8 different ringtones
• Changeable and installable ringtones
• Warning tone on busy
Power • 5 VDC adaptor
Phone
Functions
• Message and Call displayer
• Remote SIP registration – Ability to register to 3 different registration
servers. (Sequentially registration or registration to selected
registration server)
• Recorded user settings
• Call Records (128 records are kept for each of Missed, incoming
and outgoing. Last 32 call records are kept for every extension.)
• Full duplex speaker
• 2 internal 10/100 Ethernet switch ports
• Speed Dial / 24 (with DSS module)
• Phonebook – 128 numbers
• Hour/Day/Week/Month/Year basis 8 different periodical alarm,
alarm message or name definitions.
Bluetooth • Fully Qualified Bluetooth system v2.0 + EDR, CE and FCC
• Integrated chip antenna
• Enhanced Data Rate (EDR) compliant with v2.0.E.2 of specification
for both 2Mbps and 3Mbps modulation modes
• Full Speed Bluetooth Operation with Full Piconet
NT42I Technical Reference and User Guide
3
INTRODUCTION
NT42I is IP based telephone which is perfectly compatible with KAREL’s new generation IP
PBX systems with its superior and advanced properties. NT42I provides cheaper voice
communication with high quality over existing IP lines.
Thanks to NT42I IP Phone’s touch-colored screen is used easily and it is useful in terms of
visuality.
Internet output can be transmitted to computers with another ethernet port of NT42I.
PARTS LIST ON DELIVERY
- NT42I Telephone
- Telephone Handset
- Spiral cable of the handset,
- Ethernet Cable
- AC Power Adaptor
- Product Quality and Warranty Cards
- Technical Reference and User Guide CD
NT42I Telephone Handset
Ethernet Cable AC Power Adaptor Guide CD
NT42I Technical Reference and User Guide
4
GENERAL APPEARANCE
1 HF Speaker 5 Screen Adjustment Plug ** 9 Numerical Key Pad
2 Incoming Call LED* 6 Special Function Keys 10 Voice Control Keys
3 Handset 7 Navigation Keys
4 Screen 8 Special Function Keys
* Incoming Call LED is also used for warning for messages.
** Height of the screen must be adjusted with using this plug.
NT42I Technical Reference and User Guide
5
USER INTERFACE
USE OF THE TOUCH SCREEN
NT42I IP Phone’s touch screen provides that make easily selection or process. Icon what
you want to select that enough touch with fingertip on the screen.
- don’t use sharp tools for scratching
- don’t allow to contact with electric devices
- don’t allow to contact with water the touch screen. Touch screen can be destroyed in
humid situation.
NAVIGATION KEYS AND SPECIAL FUNCTION KEYS
“OK ” key : This key is for user to confirm the setting or activate the function that is
displayed on the screen.
“Navigation , , , ” keys: These keys help user to move at all menus and choose the
option which user wants.
“Contacts” key: It activates phonebook. It helps user to enter a new number, delete existing
number or reach existing numbers.
“Call Log” key: It activates Call Records Menu. It helps user to reach all call history.
“Menu” key: It helps user to enter or exit the menu that user can adjust all telephone
settings.
“Function” key: It is allocated for future needs. Any function can be assigned to this key as
other programmable keys.
“Message ” key: This key is used for reaching messages. User can understand whether
s/he has got an unlistened message or not.
“Redial” key: Dials again the last called number.
“Conference” key: This key is used for starting a conference while making an external or
internal call.
“Park” key: This key is used for parking the existing call.
“Transfer” key: This key is used for non-announced (without warning other extension who is
going to take the call) or transfer an existing call to an extension with announcement.
NT42I Technical Reference and User Guide
6
Voice Control Keys / Headset Key
According to Headset controls under General Setting menu, the operations of these buttons
are changed. If Headset control is activated, this button is used for activating the headset.
When an incoming call is answered with using this key, the conversation will be made by
using headset and when conversation ends, headset will be inactive.
However if the headphone control is inactive, this key will be used for starting a new call.
During a conversation or stand-by mode or calling mode, this key is used for starting a new
call.
NT42I Technical Reference and User Guide
7
PHYSICAL CONNECTIONS
Connectors, which are connection places of LAN, AC Power Adaptor, Headset, Headset
cables, are placed at the back of NT42I. For fast installation, firstly headset connection has to
be made. Then with making AC Power Adaptor connection, telephone will be started. Finally
LAN connection will be made with an ethernet cable.
NT42I, which is connected to LAN, will not work because NT42I has not got an IP address by
default. All information about adjusting IP settings or registering an IP system is explained in
the related chapters of this guide. Please make programming after checking to those
chapters.
NT42I Technical Reference and User Guide
8
NT42I NETWORK SETTINGS
After making required installations, when telephone is powered on.
Menu can be entered / reached with touch to the icon on the screen or with using display
keys, user can enter menu, other sub menus. After entering Menu, following 10 main menus
will be seen:
- Phonebook
- Call Records
- Messages
- System Settings
- Settings
- Security Settings
- Alarm
- SIP Settings
- DSS Settings
- PBX Settings
An IP address should be assigned to NT42I
because of not having an IP address by default. This operation will be made from
Menu>Settings>Telephone Settings>Network Settings menu.
Enter “Settings” menu by using navigation keys.
After entering Settings menu with pressing “Select” key, enter “Telephone Settings” menu
again with “Select” key.
NT42I Technical Reference and User Guide
9
Menus, which will help user to assign IP address to NT42I, are at “Network Settings” under
“Telephone Settings” menu.
After entering “Network Settings” menu, an IP address should be assigned to NT42I with
using existing LAN information. While assigning an IP address to NT42I, please contact to IT
service of your company to avoid IP conflict.
To activate NT42I telephone set, firstly;
- IP Type
- IP Address
- Netmask
- Gateway definitions must be done.
There are two options for IP type:
Static IP: User can adjust IP address and Subnet Mask manually.
DHCP: DHCP server makes all necessary network adjustments automatically.
NT42I Technical Reference and User Guide
10
Select IP type ad Static and then press Confirm.
After selecting IP type as Static, then make the adjustments listed below:
IP Address
Netmask
Gateway
Please ask your company’s authorized person about IP settings that are made.
After entering IP address, Netmask and Gateway addresses, press “confirm“ to save these
addresses. Press “Back” to exit from menu. Before exiting from “Network Settings” menu,
“Save Changes” will be seen at the screen.
Press “Yes” to save the changes and a message will occur to inform user that the changes
are saved.
Other adjustments can be made easily by using special web interface for NT42I.
Adjusting other settings with using web interface will be told at the rest of user guide.
NT42I Technical Reference and User Guide
11
NT42I WEB SETTINGS
Enter IP address of NT42I to one of your computer’s web browser. Be sure that your
computer is connected to LAN. Press “Enter”.
For example, the IP address of this NT42I is 192.168.178.247. Then the page below is going
to be seen.
Enter default password (123456) to the box which is shown above, and then press “OK”.
(Default entry password can be changed from System Settings > Http Password.
SYSTEM INFORMATION
System Information can be seen from this page.
NT42I Technical Reference and User Guide
12
NETWORK SETTINGS
By clicking on Network Settings, user can check or change settings which are made
manually.
DNS setting should be adjusted by asking authorized persons.
NT42I telephone set can register to 3 different servers but not at the same time. Defined
servers can be activated whenever user wants.
Entries about server or IP PBX are made from SIP Settings menu.
NT42I Technical Reference and User Guide
13
SIP SETTINGS
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Karel NT421 Technical Reference And User's Manual

Brand
Karel
Model
NT421
Type
Technical Reference And User's Manual

Karel NT421: Feature-rich IP phone that seamlessly integrates with Karel's IP PBX systems. Enjoy crystal-clear voice communication over IP lines, leveraging cost savings and enhanced call quality.

Key Features:

  • Intuitive touch-colored screen for easy navigation and visual appeal.
  • Dual Ethernet ports for connecting to both the phone and a computer, extending internet access.
  • Bluetooth connectivity for hands-free communication and device pairing.
  • Advanced call features: call forwarding, call transfer, three-party conferencing, and call holding.
  • Customizable phonebook with a capacity of 128 numbers for quick dialing.
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