Dialplan - Draytek Vigor2920n User Manual

available bandwidth, but Vigor V models also equip with automatic QoS assurance.
QoS Assurance assists to assign high priority to voice traffic via Internet. You will
always have the required inbound and outbound bandwidth that is prioritized exclusively
for Voice traffic over Internet but you just get your data a little slower and it is tolerable
for data traffic.
3 . 5 . 1 D i a l P l a n
3 . 5 . 1 D i a l P l a n
This page allows you to set phone book and digit map for the VoIP function. Click the Phone
Book and Digit Map links on the page to access into next pages for dialplan settings.
Enable Secure Phone
Enable SAS Voice Prompt If it is enabled, SAS prompt will be heard for both ends every
A p p l i c a t i o
A p p l i c a t i o
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.
It allows users to have encrypted RTP stream with the peer side
using the same protocol (ZRTP+SRTP). Check this box to have
secure call.
time. If it is disabled, no SAS prompt will be heard any more.
n f o r S e c u r e P h o n
n f o r S e c u r e P h o n
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Vigor2920 Series User's Guide