Matrix Technical Support Mailer - 23 Basic Concept of VOIP

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Frederick Chambers
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1 Matrix Technical Support Mailer - 23 Basic Concept of VOIP Dear friends, This mailer carries the information about basic concept of VOIP with example. This topic also explores IP classes, Private IP ranges & Internet connection types with VOIP calling possibilities. MATRIX VOIP PRODUCTS Setu ATA2S 2 voice channels & 2 SIP accounts Setu ATA2LL 2 voice channels & 2 SIP accounts Setu VP236S 1 voice channel & 2 SIP accounts Setu VP236P 1 voice channel & 2 SIP accounts Setu VFX44L 4 voice channels & 9 SIP accounts Setu VFX88L 8 voice channels & 9 SIP accounts Eternity GE VOIP card 8 voice channels & 32 SIP accounts Eternity ME VOIP card 8 voice channels & 32 SIP accounts Note: One voice channel means one speech path. You can connect maximum 4 VOIP card in an Eternity ME/GE. So, maximum 32 voice channels are possible.

MATRIX VOIP PRODUCTS Setu ATA2S 2 voice channels & 2 SIP accounts Setu ATA2LL 2 voice channels & 2 SIP accounts Setu VP236S 1 voice channel & 2 SIP accounts Setu VP236P 1 voice channel & 2 SIP

2 Peer to Peer Calling (IP calling) VOIP CALLING TYPES We need to configure both systems on Public IP for peer to peer calling if both the systems are not in same IP Network. System A is configured with Public IP Peer to peer table of system A is configured with Public IP ( ) & extension numbers (401 & 402) of remote system. System B is configured with public IP Peer to peer table of system B is configured with Public IP ( ) & extension numbers (101 & 102) of remote system. When user of system A will dial 402 to communicate with user of system B, System A will pad IP along with 402. So, 402@ will travel on the network. Destination will be decided by public IP padded with 402. Once it reaches to destination, Public IP will be removed & call will be placed on 402.

System B is configured with public IP 220.225.50.115. Peer to peer table of system B is configured with Public IP (203.88.142.219) & extension numbers (101 & 102) of remote system.

3 SIP Account Calling We need to register in SIP proxy server to get SIP account. SIP Proxy Server provides SIP ID, User name, Password, Registrar SIP server s URL/IP address & Port address. SIP Proxy Server controls all SIP calls. All SIP calls always route through SIP Proxy Server. System A is configured with SIP ID , User ID , Registrar SIP server s URL/IP address fwd.pulver.com & Port address System B is configured with SIP ID , User ID , Registrar SIP server s URL/IP address fwd.pulver.com & Port address User of system A will dial to communicate with user of system B. Call will be routed through SIP proxy server (fwd.pulver.com), where it will find SIP ID & status of system B. SIP Proxy server will controls the process & route call to system B

pulver.com & Port address - 5060. System B is configured with SIP ID - 843362, User ID 843362, Registrar SIP server s URL/IP address fwd.pulver.com & Port address - 5060. User of system A will dial 843362 to communicate with user of system B.

4 IP CLASSES IP addresses are defined in 5 Classes, which are A, B, C, D and E 1. Class A (reserved for governments) 2. Class B (reserved for medium companies) 3. Class C (reserved for small companies) 4. Class D (reserved for multicasting) 5. Class E (reserved for future use) Class A 0 7 bits 24 bits Network ID Host ID Class B bits 16 bits Network ID Host ID Class C bits 8 bits Network ID Host ID Class D bits Broadcast ID Class E Reserved for future use Private IP addresses You can use Private IP addresses on any private LAN. Private IP address range for each class is given below. Note : You can not use Private IP address on the Internet or public network.

255.255 Network ID Host ID Class B 1 0 14 bits 16 bits 128.0.0.0-191.255.255.255 Network ID Host ID Class C 1 1 0 21 bits 8 bits 192.0.0.0-223.255.255.255 Network ID Host ID Class D 1 1 1 0 28 bits 224.

5 INTERNET CONNECTION TYPES Type Of Internet connection Peer to Peer calling SIP Account calling 1. PPPoE No 2. DHCP from service provider No 3. ADSL modem with Public IP (Possible only if Port forwarding facility available in ADSL modem) ADSL modem with Public IP, Server & LAN with different Private IP 4. (Example: Public IP , No Server IP XXX & LAN IP XXX) 5. ADSL modem without Public IP No Possible after specific 6. change (assigned one IP pool exclusively) in Internet with Public IP & DHCP configuration of DHCP from local Server server. Also require port forwarding from router or ADSL modem 7. Internet with Public IP having proxy server for internet sharing & requires user name & No No password for internet access 8. VPN Network Depends on service 9. Dial up Connection No (But bandwidth is less So, poor voice quality) Note: All kind of Internet connections will work such as Broadband, Wi-Fi, Wi-Max, RF link, & cable connection, but the main important thing is utilized Internet IP assignment scheme [As mentioned above].

218, No Server IP 192.168.1.XXX & LAN IP 192.168.0.XXX) 5. ADSL modem without Public IP No Possible after specific 6.

6 VOIP connectivity with Global network Internet Network Thanks & Regards Technical Support Team Matrix Telecom, Waghodia, India Disclaimer: The information contained in this and/or attachments to it may contain confidential or privileged information. Unauthorized use, disclosure or copying is strictly prohibited and may constitute unlawful act and can possibly attract legal action, civil and/or criminal. The contents of this message need not necessarily reflect or endorse the views of Matrix Telecom Pvt. Ltd on any subject matter. Any action taken or omitted to be taken based on this message is entirely at your risk. Neither the originator of this message nor Matrix Telecom Pvt. Ltd takes any responsibility or liability towards the same. If you are not the intended recipient, please notify us immediately and permanently delete the message.

Unauthorized use, disclosure or copying is strictly prohibited and may constitute unlawful act and can possibly attract legal action, civil and/or criminal.

Matrix Technical Support Mailer 27 SIP to SIP & SIP to PSTN calling through SIP Registrar (ITSP)

Matrix Technical Support Mailer 27 SIP to SIP & SIP to PSTN calling through SIP Registrar (ITSP) 21/06/2011 Dear Friends, This Mailer Provides the Information Related to SIP to SIP Calling Through SIP