Matrix Technical Support Mailer - 23 Basic Concept of VOIP

Matrix Technical Support Mailer - 23

Basic Concept of VOIP

20.06.2008 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

Æ 2 voice channels & 2 SIP accounts ¾ Setu ATA2LL

Æ 2 voice channels & 2 SIP accounts ¾ Setu VP236S

Æ 1 voice channel & 2 SIP accounts ¾ Setu VP236P

Æ 1 voice channel & 2 SIP accounts ¾ Setu VFX44L

Æ 4 voice channels & 9 SIP accounts ¾ Setu VFX88L

Æ 8 voice channels & 9 SIP accounts ¾ Eternity GE VOIP card

Æ 8 voice channels & 32 SIP accounts ¾ Eternity ME VOIP card

Æ 8 voice channels & 32 SIP accounts

Note:Æ 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.

VOIP CALLING TYPES

¾ Peer to Peer Calling (IP calling)

Æ We need to configure both systems on Public IP for peer to peer calling if both the systems are not in same IP Network.

Æ System A is configured with Public IP 203.88.142.219. Peer to peer table of system A is configured with Public IP (220.225.50.115) & extension numbers (401 & 402) of remote system.

Æ 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.

Æ When user of system A will dial 402 to communicate with user of system B, System A will pad IP along with 402. So, [email protected] 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.

¾ SIP Account Calling

Æ 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.

Æ All SIP calls always route through SIP Proxy Server.

Æ System A is configured with SIP ID - 843361, User ID – 843361, Registrar SIP server’s URL/IP address – fwd.pulver.com & Port address - 5060.

Æ System B is configured with SIP ID - 843362, User ID – 843362, Registrar SIP server’s URL/IP address – fwd.pulver.com & Port address - 5060.

Æ User of system A will dial 843362 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

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)

8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1

Class A 0 7 bits 24 bits 1.0.0.0-127.255.255.255 ÅNetwork IDÆ Å Host IDÆ

8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1

Class B 1 0 14 bits 16 bits 128.0.0.0-191.255.255.255

ÅNetwork IDÆ Å Host IDÆ

8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1

Class C 1 1 0 21 bits 8 bits 192.0.0.0-223.255.255.255

ÅNetwork IDÆ Å Host IDÆ 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1

Class D 1 1 1 0 28 bits 224.0.0.0-239.255.255.255

ÅBroadcast IDÆ

8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1

Class E 1 1 1 1 Reserved for future use 240.0.0.0-255.255.255.255

Private IP addresses • You can use Private IP addresses on any private LAN. • Private IP address range for each class is given below.

INTERNET CONNECTION TYPES

Type Of Internet connection Peer to Peer calling SIP Account calling

1. PPPoE No Yes

2. DHCP from service provider No Yes

3. ADSL modem with Public IP

Yes

(Possible only if Port forwarding facility available in ADSL modem)

Yes

4.

ADSL modem with Public IP, Server & LAN with different Private IP (Example: Public IP 203.88.142.218, Server IP 192.168.1.XXX & LAN IP 192.168.0.XXX) No Yes

5. ADSL modem without Public IP No Yes

6. Internet with Public IP & DHCP from local Server

Yes

Possible after specific change (assigned one IP pool exclusively) in configuration of DHCP server.

Also require port forwarding from router or ADSL modem

Yes

7.

Internet with Public IP having proxy server for internet sharing & requires user name & password for internet access

No No

8. VPN Network Yes Depends on service

9. Dial up Connection No

Yes

(But bandwidth is less So, poor voice quality)

Note: Æ 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].

VOIP connectivity with Global network

Thanks & Regards

Technical Support Team

Matrix Telecom, Waghodia, India

e-mail:

[email protected]

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