AudioCodes MediaPack MP-124 Manuale Utente Scaricare il pdf (Pagina 65)

Configuration Note 4. Configuring the Device

Version 6.6 65 September 2013

5. In 'Fake Retry After' field, enter the time 60 (in seconds).

When the Enhanced gateway receives a SIP 503 response (from the Mediation

server) without a Retry-After header, the Enhanced gateway behaves as if the 503

response includes a Retry-After header with this user-defined period.

6. Click Submit.

4.15.2 Restricting Communication to Mediation Server Only

The procedure below describes how to restrict IP communication, by allowing

communication only between the Enhanced gateway and the Mediation server. This

ensures that the Enhanced gateway accepts and sends SIP calls only from and to the

Mediation server (as required by Microsoft). This is done by enabling the IP Security

feature and then defining the allowed (“administrative” list) IP addresses (or FQDNs) in the

Proxy Set table.

 To allow IP communication only between the Enhanced gateway and Mediation

server:

1. Open the Advanced Parameters page (Configuration tab > VoIP menu > SIP

Definitions > Advanced Parameters).

Figure 4-44: Advanced Parameters Page

2. From the 'IP Security' drop-down list, select Secure Incoming calls to enable the

security feature to accept and send SIP calls only from and to user-defined IP

addresses or FQDN (i.e., Mediation server) configured in the Proxy Set table (see

Section 4.1 4.4 on page 26).

3. Click Submit to apply your settings.

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AudioCodes MediaPack MP-124 Manuale Utente Pagina 65