SIP Gateway

MOSA 3700Feb 2, 2004

MOSA 3700

MOSA 3700

• Standard SIP gateway (RFC 3261)

• The same as Cisco ATA 186 But Powerful

MOSA 3700

CO

SIP Basic Structure

MOSA 3704A

Shanghaisip1@vodtel.com

IP Network

PCsip2@vodtel.com

SIPProxy Server

Taipeisip4@vodtel.com

SIP Phonesip3@vodtel.com

MOSA 3704B

MOSA 3700

Make a SIP Call

MOSA 3704A

Shanghai8621-2556-4586sip1@vodtel.com

Local PSTN

SIP Phone456@vodtel.com

IP Network MOSA 3704A

Local PSTN

Taipei8862-8226-3368

PCsip2@vodtel.com

SIP Phone Book 111 sip2@vodtel.com

Dial 456

Dial 111

SIPProxy Server

MOSA 3700

Dialing Mode

• Standard Call: <numbers>1. Compare dialing plan2. Become “< numbers>@proxy server address” go through SIP proxy. 3. Go through PSTN

• SIP Call Only: <#> <numbers>1. Compare SIP Phone books 2. Become “<numbers>@proxy server address” go through SIP proxy

• PSTN Call Only: <*> <numbers>1. Always go through PSTN

MOSA 3700

SIP Hunting Group

SIP Entity 3

Local PSTN

MOSA 3708

SIP Entity 2 SIP Entity 1

MOSA 3700

SIP Applications

Soft-phone

IP SHARING

MOSA 3704A

SIP Proxy Server & STUN Server

IP Network

MOSA 3704B

SIP IP Phone

IP SHARING

Cisco 5300

PSTN

CO

MOSA 3700

Send Faxes

MOSA 3704B

Shanghaisip1@vodtel.com

IP Network

SIPProxy Server

MOSA 3704B

Taipeisip2@vodtel.com

SIP SIP

Even SIP protocol does not support FAX, two AGW 3700 can send FAX each other through SIP

MOSA 3700

Behind NAT

IP Network

NAT Domain 2

NAT Domain 1

NAT Ser

ver

NAT Server

Can Use Private IP

Support STUN

MOSA 3700

SIP Interoperability Example

• Proxy Server1. SIEMEMS 0-9.2.02. VOVIDA V1.53. Cisco IOS 2.0

• SIP IP Phone1. Cisco7960 SIP Phone POS3-04-1-00

2. Pingtel Instance Xpressa

• Softphone1. Ubiquaty Soft phone Version 3-0-62. Windows Messenger Version 4.7 (4.7.0104)

3. X-Lite 2.0

MOSA 3700

Modules:

4 FXO + 4 FXS4 FXS 8 FXO8 FXS

3716

3708

2 FXO + 2 FXS

4 FXS

4 FXO

1 FXO + 3 FXS

3704A

3704B

3704C

3704D

1 FXO + 1 FXS

2 FXS

3702A

3702B

Models

MOSA 3700

VODTEL Communications Inc.

Thank You

Headquarter: Taipei, TaiwanTel: +886-2-82263368Fax: +886-2-82263139

Liaison office: Nanjing, ChinaTel: +86-25-440-3714

WEB Site: www.vodtel.com.tw