The Nokia E series is the best of both worlds in one mobile handsets, with automatic

selection of Voice over IP, when available.

Here's a brief outline of the phone configuration:

1. Tools > Settings > Connections > SIP Settings

2. Add a new profile called "plusvoip"

3. Service Profile: IETF

4. Default Access Point: (Select your Service provider AP)

5. Public Username: sip:Usser id@sip.plusvoip.com

6. Use Compression: No

7. Registration: Always on

8. Use Security: No

Proxy Server:

9. Registrar Server Address: None

10. Realm: none

11. User Name: None

12. Password: None

13. Allow loose routing: Yes

14. Transport Type: UDP

15. Port: 5060

Registrar Server:

16. Address: sip:sip.plusvoip.com

17. Realm: asterisk

plusvoip user id
19. Password: plusvoip a/c password

18. Username:

20. Transport type: UDP

21. Port: 5060

Nokia E51 Internet Telephone Configure:

1. Go to Tools > Settings > Connection > Internet Telephone Settings

2. Create a new profile for "Home", name it "Home"

3. Choose "Home" as Preferred profile

4. Menu > Connectivity > Internet Telephone > Options > Settings > Default Call Type

5. Select: Internet call.

Thanks
plusvoip support team.