voice & data integration voice & data integration voip karel electronics telecommunication...

VOICE & DATA VOICE & DATA INTEGRATIONINTEGRATION

VoIP

KARELKAREL ElectronicsElectronics Telecommunication TechnologiesTelecommunication Technologies

PurposePurpose

The aim of this presentation is to give basic information on

the VoIP technology and VoIP solutions in the DS200 systems


IntroductionIntroduction

Over 1 billion people on earth are connected to a wide

network through which they can reach each other by

telephones or through the Internet.

Ref: International Telecommunication Union


The network consists of telephones, switching

systems, routers, copper or optical cables, base stations,

radiolinks, satellites and many similar equipments.



The annual turnover of the global telecommunications market is approximately 3K billion USD ($3

trillion)

Ref: Telecommunications Industry Association’s (TIA) 2006 Telecommunications Market Review And Forecast


The emerging integration trend in the industry

triggers the adaptation of different technologies, as it

grows day by day This in turn yields new fields

of activitiesKARELKAREL ElectronicsElectronics Telecommunication TechnologiesTelecommunication Technologies

CONTENTSCONTENTS• Brief History• Why Integration?• VoIP

– IP Packets– Voice Digitisation– SIP– H.323– Advantages– Examples

• DS200 VoIP Connection and Netmeeting– KNE– NetMeeting– IDEA– SIP and H.323 Listener


BRIEF HISTORYBRIEF HISTORY•PSTN: Late 1800s (Public Switched Telephone Network) •ISDN: 1980s (Integrated Services Digital Network)

•DECT : 1980s (Digital Enhanced Cordless Telecommunications)

•DSL : 1990s (Digital Subscriber Line)

•GSM : 1990s (Global System for Mobiles)

•VoIP : Late 1990s (Voice Over Internet Protocol)

•CTI : Late 1990s (Computer Integrated Telephony)


WHY INTEGRATION?WHY INTEGRATION?

• Variation of user demands with the emerging communication technologies

• The savings in the infrastructure costs• Decline in the costs of integration

equipments driven by the technological developments in electronics.


VoIPVoIP•VoIP (Voice over Internet

Protocol)– Voice over Internet Protocol. The technology

used to transmit voice conversations over a data network using the Internet Protocol. Such data network may be the Internet or a corporate Intranet.

– VoIP protocols:• SIP (UDP/RTP)• H.323 (TCP/IP)


VoIPVoIPIP PacketsIP is based on packetsLarge messages are segmented into small packets

Header contains addresses (IP Address)Payload can be anything , including Digitised Voice

PAYLOAD (DATA) HEADER


Voice DigitisationAnalog Voice Digital Bit-stream Analog Voice

VoIPVoIP

010111001100

PAYLOAD (DATA) HEADER IP

IP

IP

IPIP

IP

IP


SIP – SIP – (Session Initiation Protocol)(Session Initiation Protocol)

"The "The Session Initiation Session Initiation ProtocolProtocol ( (SIPSIP)) is an is an application-layer control application-layer control (signaling) protocol for (signaling) protocol for creating, modifying, and creating, modifying, and terminating sessions with terminating sessions with one or more participants. one or more participants. These sessions include These sessions include Internet telephone calls, Internet telephone calls, multimedia distribution, multimedia distribution, and multimedia and multimedia conferences conferences

- This standard uses - This standard uses UDP/RTPUDP/RTP protocol for protocol for communication.communication.

A BProxy Proxy

(Registrar local services)

……. ……. …….

Register200 Ok

Register200 Ok

Invite100 Trying

Invite100 Trying

Invite180 Ringing

180 Ringing180 Ringing

200 Ok200 Ok200 Ok

AckMedia Session – UDP/RTP

Bye200 Ok



H.323H.323

H.323H.323: ITU (International Telecommunications : ITU (International Telecommunications Union) standard for videoconferencing over Union) standard for videoconferencing over local area networks and packet-switched local area networks and packet-switched networks generally. It is based on a networks generally. It is based on a recognised real-time standard and is recognised real-time standard and is commonly used with video over the Internet commonly used with video over the Internet to ensure that users can communicate with to ensure that users can communicate with each other, as long as they are using each other, as long as they are using videoconferencing software which complies videoconferencing software which complies with the standard, eg Microsoft NetMeeting, with the standard, eg Microsoft NetMeeting, Netscape Conference. The standard applies Netscape Conference. The standard applies both to one-to-one and multi-party both to one-to-one and multi-party videoconferences. videoconferences. - An ITU-T standard for digital - An ITU-T standard for digital videoconferencing over videoconferencing over TCP/IPTCP/IP networks. networks.

ADVANTAGESADVANTAGES

• Toll-free calls over the existing data network among the company branches.

• Local charging for the long distance calls that are established among the cities of company branches.


EXAMPLEEXAMPLE

Manchester

VoIP VoIP

London

Expensive routeExpensive route

1642 numbered extension 0112960542,

1642

1642

Economical Economical routeroute

PSTNPSTNPSTNPSTN

IP NetworkIP NetworkRouter Router


EXAMPLEEXAMPLE

9 011 2670240

Expensive routeExpensive route

Economical Economical routeroute

011 2670240

PSTN

ManchesterLondon

VoIP VoIP

PSTNPSTN PSTNPSTN

IP NetworkIP Network

RouterRouter


ADVANTAGES ADVANTAGES ContinuedContinued

• Reduced Operating Cost• Simplify building and office moves, changes.• Flexibility to add new services or reconfigure the

existing ones• Synergy with internet-based facilities and services• Economy in traffic capacity due to voice compression

and statistical multiplexing.• Ability to extend to future wide area telephony• Single wiring scheme for everything• Entire Voice/Data Network is IP based, single wire to

the desktop• Telephones are ethernet devices


EXAMPLEEXAMPLE

ROUTER ROUTER

IP PHONESIP add-on to PABX


DS200 VoIP CONNECTIONDS200 VoIP CONNECTIONandand

NETMEETINGNETMEETING


KNEKNE

Internet Internet

NetworkNetwork A A

NetworkNetwork BB

PBX Server Client Client PBX Server Client Client ClientClient

PBX Server Client Client PBX Server Client Client ClientClient

NetworkNetwork C C

NetworkNetwork D D

Client Client Client Server Client Client Client Server PBXPBX

Client Client Client Server Client Client Client Server PBX PBX

Gateway IP Gateway IP AddressAddress




NA

T IP IP

A

ddre

ssN

AT

IP IP A

ddress

VoIP Card IP VoIP Card IP AddressAddress


Service Service ProvideProviderr

Gateway IP AddressGateway IP Address: : Is the IP Is the IP Address of an entrance to a Address of an entrance to a computer network. It connects computer network. It connects to both a router and a switch to both a router and a switch



NAT IP AddressNAT IP Address: : (Network Address (Network Address Translation) A method for translating Translation) A method for translating internal IP addresses or network internal IP addresses or network addresses into a single globally addresses into a single globally unique IP address. It permits a nearly unique IP address. It permits a nearly unlimited number of users of one unlimited number of users of one class C Network address because class C Network address because global addresses are required only global addresses are required only when a user is connected to the when a user is connected to the InternetInternet


KNE - InstallationKNE - Installation•KNE – Karel Network Equipment

1) To install the KNE application first locate the Setup.exe file and double click to open it. The window to the right should appear. Please close any applications that may be using shared files with the KNE program. Press “OK” to continue with the setup.

2) After pressing “OK” the window to the right should appear asking you to choose the directory that you would like the KNE application to install in. Choose the directory and press the icon to continue with the setup.


KNE - InstallationKNE - Installation

3) After pressing the icon the following window to the right should appear. In this window you can choose a group to install the KNE application in or create a new group if desired. Choose the group and then press “Continue”.


KNE - InstallationKNE - Installation

4) The setup should start installing the application. If necessary you can cancel the installation by pressing the “Cancel” button anytime during the installation.

5) If the installation is successful you should see the window to the right. Press “OK” to finish. You are now ready to launch the KNE application.


KNE -KNE -SETUPSETUPWhen you run the KNE application the When you run the KNE application the window to the right will appear. In this window to the right will appear. In this window you will see the information window you will see the information regarding the VoIP card that is in use.regarding the VoIP card that is in use.

Configuring the VoIP card: Configuring the VoIP card: Network Network SettingsSettings1) When over the application window, 1) When over the application window, right click and select “right click and select “Network Network Settings...Settings...”.”.



KNE -KNE -SETUPSETUPIP AddressIP Address: This is the IP address of the VoIP Card: This is the IP address of the VoIP CardGateway AddressGateway Address: This is the default address of the : This is the default address of the network.network.Subnet MaskSubnet Mask: This is the subnet mask used by the : This is the subnet mask used by the network.network.TCP Prg. Port NoTCP Prg. Port No: This is the port number which the : This is the port number which the computer (KNE application) and the VoIP card use to computer (KNE application) and the VoIP card use to communicate.communicate.DHCPDHCP: Dynamic Host Configuration Protocol is not : Dynamic Host Configuration Protocol is not active in this version of KNE. It is implemented to the active in this version of KNE. It is implemented to the application but it will only be activated once the application but it will only be activated once the Service Providers start providing this feature. This Service Providers start providing this feature. This field is added for future compatibility.field is added for future compatibility.DS200 NoDS200 No: In this field you can give numbers to PBXs : In this field you can give numbers to PBXs which are installed with the VoIP feature. which are installed with the VoIP feature. TFTP Server IPTFTP Server IP: This is the IP address of the computer : This is the IP address of the computer which the KTFTP application is installed on. More which the KTFTP application is installed on. More information will be given in the following slides.information will be given in the following slides.NAT IP AddressNAT IP Address: This is the Real IP address which the : This is the Real IP address which the whole network is known as on the internet.whole network is known as on the internet.


KNE -KNE -SETUPSETUPEnable ProxyEnable Proxy: This option is checked if there is a : This option is checked if there is a Service Provider which serves as a H.323 or SIP proxy Service Provider which serves as a H.323 or SIP proxy server.server.Proxy IP AddressProxy IP Address: This is the IP address of the Service : This is the IP address of the Service Provider. This is normally enough for establishing a Provider. This is normally enough for establishing a connection.connection.Proxy NameProxy Name: Depending on the Service Providers : Depending on the Service Providers setup they could also ask for a proxy name for setup they could also ask for a proxy name for establishing a connection. E.g: sip.kocnet.comestablishing a connection. E.g: sip.kocnet.comRegistration TimeRegistration Time: In order to establish a connection, : In order to establish a connection, the server has to register itself with the Service the server has to register itself with the Service Providers proxy server. This registration is renewed in Providers proxy server. This registration is renewed in intervals. This is the renewal interval time. The intervals. This is the renewal interval time. The renewal rate is half the time of the entered value. renewal rate is half the time of the entered value. E.g: 600 seconds in our example.E.g: 600 seconds in our example.Registration Retry TimeRegistration Retry Time: This is the duration which the : This is the duration which the server waits to renew its registration when there is a server waits to renew its registration when there is a problem with the connection.problem with the connection.User Name & PasswordUser Name & Password: These are the details given : These are the details given by the Service Provider to authenticate a connection.by the Service Provider to authenticate a connection.


KNE -KNE -SETUPSETUPCnounceCnounce: The Service Provider uses this field to add : The Service Provider uses this field to add an extra security to the connection. The details an extra security to the connection. The details entered here are given by the Service Provider.entered here are given by the Service Provider.

Gateway NameGateway Name: If given, the Gateway Name of the : If given, the Gateway Name of the Service ProviderService Provider is entered here.is entered here.

Gateway Registration NameGateway Registration Name: This is the name that the : This is the name that the Service Provider assigns to the users to authenticate Service Provider assigns to the users to authenticate the connection to their Gateway.the connection to their Gateway.

Enable RegistrationEnable Registration: When this box is checked the : When this box is checked the server starts using the “server starts using the “Registration TimeRegistration Time” feature ” feature and starts renewing the registration in intervals as and starts renewing the registration in intervals as mentioned in the previous slide.mentioned in the previous slide.

- After the desired settings are made press “- After the desired settings are made press “ProgramProgram” ” to write the settings in to the memory.to write the settings in to the memory.-By pressing the “By pressing the “RegisterRegister” you can register to the ” you can register to the Service Providers proxy server instantly without Service Providers proxy server instantly without waiting for the “Registration Time” feature. waiting for the “Registration Time” feature. - The “The “RestartRestart” button restarts the KNE application.” button restarts the KNE application.

KNE -KNE -SETUPSETUP

Configuring the VoIP card: Configuring the VoIP card: Address TableAddress Table2) When over the application window, 2) When over the application window, right click and select “right click and select “Address Table...”.Address Table...”.


KNE -KNE -SETUPSETUPNumbers Numbers : In this field you can assign phone : In this field you can assign phone numbers that will be forwarded through selected numbers that will be forwarded through selected networks or proxy servers.networks or proxy servers.

IP NoIP No: These are the IP numbers of the : These are the IP numbers of the Gateways or the Service Providers proxy servers Gateways or the Service Providers proxy servers depending on the network structure.depending on the network structure.

DestinationDestination: Is the type of the server used.: Is the type of the server used.

EXAMPLE 1EXAMPLE 1: In row 1 you can see that the phone : In row 1 you can see that the phone numbers between 1100 and 1109 are set to be numbers between 1100 and 1109 are set to be forwarded to the 192.168.0.241 IP numbered forwarded to the 192.168.0.241 IP numbered gateway (network). In here the destination is gateway (network). In here the destination is chosen as “Gateway” because the connection is chosen as “Gateway” because the connection is made internally between two networks which are a made internally between two networks which are a part of the same organisation. part of the same organisation.

EXAMPLE 2EXAMPLE 2: In row 3 we can see that any number : In row 3 we can see that any number starting with 00 followed by 15 numbers is set to be starting with 00 followed by 15 numbers is set to be forwarded to the 193.243.202.97 IP numbered forwarded to the 193.243.202.97 IP numbered Proxy Server. In here the aim is to forward Proxy Server. In here the aim is to forward International calls through a proxy server provided International calls through a proxy server provided by a Service Provider. The destination here is by a Service Provider. The destination here is chosen as Proxy Server becasue the connection is chosen as Proxy Server becasue the connection is made through the Internet. Which is an external made through the Internet. Which is an external connection.connection.

Load FileLoad File: Loads a previously saved setting. : Loads a previously saved setting. SaveSave: This saves the settings permanantly. : This saves the settings permanantly. RefreshRefresh: Refreshes the current session. : Refreshes the current session. ProgramProgram: Saves the settings to the memory : Saves the settings to the memory which is only kept during the current session.which is only kept during the current session.



Configuring the VoIP card: Configuring the VoIP card: Capability Capability TableTable2) When over the application window, 2) When over the application window, right click and select “right click and select “Capability Capability Table...Table...”.”.



Load FileLoad File: Loads a previously saved setting. : Loads a previously saved setting. SaveSave: This saves the settings permanantly. : This saves the settings permanantly. RefreshRefresh: Refreshes the current session. : Refreshes the current session. ProgramProgram: Saves the settings to the memory : Saves the settings to the memory which is only kept during the current session.which is only kept during the current session.

CapabilityCapability::-Non-Std: Not Used-Non-Std: Not Used-RcvAudio: Receiving Audio-RcvAudio: Receiving Audio-XmtAudio: Transmitting Audio-XmtAudio: Transmitting Audio-Rcv&XmtAudio: Receiving and Transmitting -Rcv&XmtAudio: Receiving and Transmitting AudioAudio

Audio TypeAudio Type: In this box the type of the audio : In this box the type of the audio compression used can be selected.compression used can be selected.

Maks. FrameMaks. Frame: This is set to be left as “3”. Do not : This is set to be left as “3”. Do not change this value.change this value.

SVASVA: Is not applicable in this version of KNE: Is not applicable in this version of KNE



Configuring the VoIP card: Configuring the VoIP card: ParametersParameters2) When over the application window, 2) When over the application window, right click and select “right click and select “Parameters...Parameters...”.”.



KNE -KNE -SETUPSETUPParametersParameters::

- In the parameters page there are only two - In the parameters page there are only two settings that are important for the end-user. The settings that are important for the end-user. The rest of the settings are irrelevant for them.rest of the settings are irrelevant for them.

**NAT IP AddressNAT IP Address: This IP address is the Real IP of : This IP address is the Real IP of the network.the network.

**Signalling port noSignalling port no: This is the port number : This is the port number which the SIP or H.323 protocols uses to send which the SIP or H.323 protocols uses to send and recieve data.and recieve data.

KNE -KNE -SETUPSETUPConfiguring the VoIP card: Configuring the VoIP card: Upgrade ‘u_boot.bin’ – Upgrade Upgrade ‘u_boot.bin’ – Upgrade ‘voip.bin’‘voip.bin’

- ‘- ‘u_boot.binu_boot.bin’ is the initial settings firmware. We ’ is the initial settings firmware. We can think of it as the DOS of the VoIP card. We can think of it as the DOS of the VoIP card. We need this firmware in order to boot the system need this firmware in order to boot the system to be able to install the voip.bin file. to be able to install the voip.bin file.

-’’voip.binvoip.bin’ is the file firmware which keeps the ’ is the file firmware which keeps the details and settings of the communication details and settings of the communication protocols. The voip.bin files for SIP and H.323 protocols. The voip.bin files for SIP and H.323 are different. Can be adjusted for future are different. Can be adjusted for future developments on program coding level and can developments on program coding level and can only be done by KAREL R&D department.only be done by KAREL R&D department.

***In order to install these firmwares and files ***In order to install these firmwares and files we have to use the KTFTP program. We need to we have to use the KTFTP program. We need to install this program on one of the computers on install this program on one of the computers on the network. After the installation, the IP the network. After the installation, the IP address of that computer is entered in the ‘address of that computer is entered in the ‘TFTP TFTP Server IPServer IP’ field from the ‘’ field from the ‘Network SettingsNetwork Settings’ page’ page


Net-Meeting SetupNet-Meeting SetupTo run the Net-Meeting program enter “To run the Net-Meeting program enter “confconf” ” command from the “command from the “RunRun” window.” window.

-Net-Meeting program comes pre-installed with -Net-Meeting program comes pre-installed with the Windows platforms. If not you can easily the Windows platforms. If not you can easily download it from the microsoft webpage.download it from the microsoft webpage.

After the application has started go to: After the application has started go to:

‘‘ToolsTools’ ’ ‘Options’ ‘Options’


Net-Meeting SetupNet-Meeting Setup

In the ‘In the ‘GeneralGeneral’ tab enter your ’ tab enter your personal details in the fields personal details in the fields accordingly and check the boxes to accordingly and check the boxes to your preferences. your preferences.



Go to the ‘Go to the ‘Bandwidth SettingsBandwidth Settings’ button ’ button which is located on the bottom left which is located on the bottom left corner of the ‘Options’ window and corner of the ‘Options’ window and select the speed of your network select the speed of your network connection.connection.


Net-Meeting SetupNet-Meeting SetupGo to the ‘Go to the ‘Advanced CallingAdvanced Calling’ button ’ button which is located on the bottom right which is located on the bottom right corner.corner.

If there is a server acting as a If there is a server acting as a gatekeeper, keeping the user gatekeeper, keeping the user information and acting as a router, information and acting as a router, choose this option and enter the IP choose this option and enter the IP address of that gatekeeper and then address of that gatekeeper and then enter the phone number that you enter the phone number that you would like to register with.would like to register with.


Net-Meeting SetupNet-Meeting SetupGo to the ‘Go to the ‘Advanced CallingAdvanced Calling’ button ’ button which is located on the bottom right which is located on the bottom right corner.corner.

If there is no gatekeeper present If there is no gatekeeper present check this box and enter the IP check this box and enter the IP address of the active VoIP card which address of the active VoIP card which is acting as a gateway.is acting as a gateway.



In the ‘Audio’ tab all options should be checked to supply the best possible communication. .


Net-Meeting SetupNet-Meeting SetupIn the ‘In the ‘AudioAudio’ tab ’ tab go to the ‘Advanced’ button. .

Choose the correct coding according Choose the correct coding according to your device settings.to your device settings.

- ‘- ‘CCIT A-Law, 8,000kHz; 8 Bit; MonoCCIT A-Law, 8,000kHz; 8 Bit; Mono’ ’ is the default value.is the default value.



IDEA SetupIDEA SetupTo finalize the settings some changes are made on LCR table on the DS200 system (IDEA Program). 1) LCR must be activated from ‘System Parameters’.


IDEA SetupIDEA Setup2) “2000” is entered in the “Leading Digits” table. Route 1 is selected for this prefix.


IDEA SetupIDEA Setup3) In the ‘Route Table’ menu the route no 1 is selected as one of the VoIP cards lines. In our example the line selected is 19001.

MAINTENANCEMAINTENANCE

In order to monitor VoIP lines H323 and SIP Listener programs are used


voice & data integration voice & data integration voip karel electronics telecommunication...

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