AudioCodes MP-20x Guía de instalación descargar pdf (Pagina 21)

AudioCodes Customer Support

Page 21

Q5: Can MP-20x operate behind a NAT?

Yes. It is recommended to connect the MP-20x directly to your Cable or ADSL modem.

However, if this is not possible, then:

 If the MP-20x is located behind a router that uses Application Layer Gateway (ALG), then

there is no need to make any additional modifications.

 If ALG is not supported by the router, then it can operate behind the NAT using an external

STUN server.

¾ To configure NAT:

4. Logon to the Web interface.

5. Open the ‘Signaling Protocol’ screen (Voice Over IP menu > Signaling Protocol tab).

6. Under the NAT Traversal group, select the ‘Enable STUN’ check box.

Figure 20: Configuring NAT in the Web Interface

Q6: What is the maximum number of phones that can be connected in parallel to a single

MP-20x FXS port?

Up to five phones can be connected to a single MP-20x FXS port.

Q7: Can I set up my service so that my caller ID on outbound calls is blocked by default for

all calls, without having to dial additional digits?

Yes.

¾ To block caller ID:

1. Logon to the Web interface.

2. Open the ‘Line Settings’ screen (Voice Over IP menu > Line Settings tab).

3. Click the Action icon corresponding to the line for which you want to block caller ID.

4. Select the ‘Block Caller ID’ check box.

Figure 21: Blocking Caller ID in the Web Interface

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AudioCodes MP-20x Guía de instalación Pagina 21