User manual

Example 4: SIP to Direct IP Calling

Applications:

The application is for the calling party with ADSL connection

as in either Diagrams A or B

. The

calling party is registered to SIP server with either fixed real IP or private IP under NAT router. The

answering party is with fixed real IP.

Configurations:

1. Same as in Example 2.

2. Select “ON” in the “SIP settings / STUN setting” page, if Outbound Proxy is NOT available.

3. Make sure the PHONE LED is flashing continuously with a successful SIP registration.

Callings:

Pick up the phone for VoIP mode.

Press 211*21*191*4# or 211*21*191*4 to call the party with the real IP address of

211.21.191.4. In a moment, you should hear a ring back tone, and wait for the VoIP

called party to answer.

Example 5: PSTN to SIP Calling

Applications:

The applications can be for ADSL connections

as in both Diagrams A and B

. Both parties are

registered to SIP server with either fixed real IP or private IP under NAT router.

Configurations:

1. Same as in Example 2.

2. Select “ON” in the “SIP settings / STUN setting” page, if Outbound Proxy is NOT available.

Select

“ON”

for the “Auto Answer” and “PIN Code”in Call settings. Set the Auto Answer

Ring Counter, e.g. 3, and the PIN code, e.g. 1234.

4. Make sure the PHONE LED is flashing continuously with a successful SIP registration.

Callings:

Make a Call from PSTN line to the VS211 FXO number, e.g. 7654321. In a moment,

you should hear a ring back tone, and wait for the VS211 to answer. After 4 rings, the

VoIP mode will auto answer with a short beep tone (not dial tone). Press 1234# for PIN

code and then you will hear a dial tone for VoIP mode. Incorrect PIN Code will result in

call disconnect. Note that if PIN code is OFF, there will be not short beep tone and the

caller may press SIP number directly.

Press 1688# or 1688 to call the party with the

registered SIP phone number 1688

In a

moment, you should hear a ring back tone, and wait for the VoIP called party to answer.