MitraStar Movistar GPT-2541GNAC, User Manual

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Chapter 21 Voice 173
Don't send re-
Invite to the
remote party
when there are
multiple codecs
answered in the
SDP
Do not send a re-Invite packet to the remote party when the remote party answers
that it can support multiple codecs??
Bound Interface
Name
Bound Interface
Name
If you select LAN or Any_WAN , the Router automatically activates the VoIP service
when any LAN or WAN connection is up.
If you select
Multi_WAN , you also need to select the pre-configured WAN
connections. The VoIP service is activated only when one of the selected WAN
connections is up.
Outbound Proxy
Outbound Proxy
Address
Enter the IP address or domain name of the SIP outbound proxy server if your VoIP
service provider has a SIP outbound server to handle voice calls. This allows the
Router to work with any type of NAT router and eliminates the need for STUN or a
SIP ALG. Turn off any SIP ALG on a NAT router in front of the Router to keep it from
re-translating the IP address (since this is already handled by the outbound proxy
server).
Outbound Proxy
Port
Enter the SIP outbound proxy server’s listening port, if your VoIP service provider
gave you one. Otherwise, keep the default value.
RTP Port Range
Start Port
End Port Enter the listening port number(s) for RTP traffic, if your VoIP service provider gave
you this information. Otherwise, keep the default values.
To enter one port number, enter the port number in the
Start Port and End Port
fields.
To enter a range of ports,
• enter the port number at the beginning of the range in the
Start Port field.
• enter the port number at the end of the range in the End Port field.
DTMF Mode
DTMF Mode Control how the Router handles the tones that your telephone makes when you
push its buttons. You should use the same mode your VoIP service provider uses.
RFC2833 - send the DTMF tones in RTP packets.
InBand - send the DTMF tones in the voice data stream. This method works best
when you are using a codec that does not use compression (like G.711). Codecs that
use compression (like G.729 and G.726) can distort the tones.
SIPInfo - send the DTMF tones in SIP messages.
Table 98 SIP Server (continued)
LABEL DESCRIPTION