Draytek VIGOR2925 SERIES User Manual page 468

Hide thumbs Also See for VIGOR2925 SERIES:

Table of Contents

Enable SAS Voice Prompt, for ex: if vigor router A calls vigor router B with checking Enable

Secure Phone and Enable SAS Voice Prompt, then:

1. After the connection established, vigor router A will send SAS voice prompt to A and

vigor router B will send the SAS voice prompt to B.

2. Then the RTP traffic is secured until the call ends.

3. If vigor router A wants to call vigor router B again next time, both A and B will not hear

any voice prompt again even checking Enable SAS Voice Prompt on web UI. It means

only the first call between them will have voice prompt.

Enable SAS Voice Prompt, for ex: if vigor router A calls vigor router B with checking Enable

Secure Phone but not Enable SAS Voice Prompt, then:

1. After the connection established, vigor router A will NOT send SAS voice prompt to

vigor router A and vigor router B will NOT send the SAS voice prompt to vigor router B.

2. Even no voice prompt, but the RTP traffic is still secured until the call ends.

Note: If the incoming or outgoing calls do not match any entry on the phonebook, the

router will try to make the call "being protected". But, if the call ends up "unprotected"(e.g.

peer side does not support ZRTP+SRTP), the router will not play out a warning message.

Vigor2925 Series User's Guide

stream. The default value is 15000.

RTP TOS – It decides the level of VoIP package. Use the

drop down list to choose any one of them.