1. DPH-140S Peer-to-Peer Layout Call Flow: HO  Branch

2. 1.Two DDNS accounts configured on DSL routers located in HO & Branch (In case ISP does not offer static IP over DSL. So user can call up remote party by Domain Name) 2.DMZ setup on DSL Router (DPH-140S IP setup as DMZ on either sides of DSL Routers to allow all incoming VoIP traffic) Pre-Requisite

3. 1.Setup IP address, Gateway & DNS Server Info 2.Setup SIP Account Settings 3.Add Phone-Book Entry 4. Dialing a Call Setup Procedure

4. DPH-140S Setup @ HO HO

5. DISABLE DHCP: Press Use or to set DHCP to DISABLE Press  To enter in to the Phone Menu Setup IP Configuration Enter Setup Menu:

6. Press Enter the IP address Press Enter the subnet mask Press Enter the Router IP address Enter: 255.255.255.0 Enter: 192.168.1.1 Enter: 192.168.1.10 Enter IP Address, Subnet Mask & Gateway: Setup IP Configuration

7. DNS Server IP: Press Enter DNS server IP Save and exit NOTE:  Use left and right arrow on the direction pad to select ENABLE or DISABLE.  Left arrow key can be used as Backspace key. DNS In UAE: 213.42.20.20 To quit without saving Setup IP Configuration

8. 1.Type in DPH-140S IP & port to log-in Exa; http://192.168.1.10:9999 2. Click OK to bypass log-in screen Note: By default Username & Password are Blank. Setup SIP Account Settings

9. Click SIP Settings Enter: Display Name= dubai SIP U/N = dubai  Click “Submit” to save changes Setup SIP Account Settings

10. Add Phone-Book Entry Click Phone Book Add entry for Branch Office: Name = 2222 Number = 222@voip2.dyndns.com Phone Book helps user to dial saved number as a Quick-dial Click “New” to add desired entry

11. Branch DPH-140S Setup @ Branch

12. DISABLE DHCP: Press Use or to set DHCP to DISABLE Press  To enter in to the Phone Menu Setup IP Configuration Enter Setup Menu:

13. Press Enter the IP address Press Enter the subnet mask Press Enter the Router IP address Enter: 255.255.255.0 Enter: 192.168.2.1 Enter: 192.168.2.10 Enter IP Address, Subnet Mask & Gateway: Setup IP Configuration

14. DNS Server IP: Press Enter DNS server IP Save and exit NOTE:  Use left and right arrow on the direction pad to select ENABLE or DISABLE.  Left arrow key can be used as Backspace key. DNS IP: Confirm with ISP To quit without saving Setup IP Configuration

15. 1.Type in DPH-140S IP & port to log-in Exa; http://192.168.2.10:9999 2. Click OK to bypass log-in screen Note: By default Username & Password are Blank. Setup SIP Account Settings

16. Click SIP Settings Enter: Display Name= egypt SIP U/N = egypt  Click “Submit” to save changes Setup SIP Account Settings

17. Add Phone-Book Entry Click Phone Book Add entry for HO Office: Name = 1111 Number = 1111@voip1.dyndns.com Phone Book helps user to dial saved number as a Quick-dial Click “New” to add desired entry

18. Test Connectivity:  Try pinging the DDNS names to ensure DDNS is working. Exa: Ping voip1.dyndns.com Dialing a Call Place a Call:  From HO-to-Branch: User “1111” at HO can call up Branch on “2222” by accessing Phone Book menu & selecting “2222” entry  From Branch-to- HO : User “2222” at Branch can call up HO on “1111” by accessing Phone Book menu & selecting “1111” entry