Chapter 23 Voice
VMG/XMG Series User’s Guide
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Each field is described in the following table.
Table 123 VoIP > SIP > SIP Service Provider > Add new provider/Edit
LABEL DESCRIPTION
SIP Service Provider Selection
Service Provider
Selection
Select the SIP service provider profile you want to use for the SIP account you configure in this
screen. If you change this field, the screen automatically refreshes.
General
SIP Service
Provider
Select Enable SIP Service Provider to enable the SIP service provider.
SIP Service
Provider Name
Enter the name of your SIP service provider.
SIP Local Port Enter the Zyxel Device’s listening port number, if your VoIP service provider gave you one.
Otherwise, keep the default value.
SIP Proxy Server
Address
Enter the IP address or domain name of the SIP server provided by your VoIP service provider.
You can use up to 95 printable ASCII characters. It does not matter whether the SIP server is a
proxy, redirect or register server.
SIP Proxy Server
Port
Enter the SIP server’s listening port number, if your VoIP service provider gave you one.
Otherwise, keep the default value.
SIP REGISTRAR
Server Address
Enter the IP address or domain name of the SIP register server, if your VoIP service provider gave
you one. Otherwise, enter the same address you entered in the SIP Server Address field. You can
use up to 95 printable ASCII characters.
SIP REGISTRAR
Server Port
Enter the SIP register server’s listening port number, if your VoIP service provider gave you one.
Otherwise, enter the same port number you entered in the SIP Server Port field.
SIP Service
Domain
Enter the SIP service domain name. In the full SIP URI, this is the part after the @ symbol. You can
use up to 127 printable ASCII Extended set characters.
RFC Support
PRACK (RFC
3262, Require:
100rel)
PRACK (RFC 3262) defines a mechanism to provide reliable transmission of SIP provisional
response messages, which convey information on the processing progress of the request. This
uses the option tag 100rel and the Provisional Response ACKnowledgement (PRACK) method.
Select this to have the the peer device require the option tag 100rel to send provisional
responses reliably.
VoIP IOP Flags Select the VoIP inter-operability settings you want to activate.
Replace dial
digit ‘#’ to ‘%23’
in SIP messages
Replace a dial digit “#” with “%23” in the INVITE messages.
Remove the
‘Route’ header
in SIP messages
Remove the ‘Route’ header in SIP packets.
Bound Interface Name
Bound Interface
Name
If you select Any_WAN, the Zyxel Device automatically activates the VoIP service when any LAN
or WAN connection is up.
If you select Multi_WAN, you also need to select two or more pre-configured WAN interfaces.
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 Zyxel Device 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 Zyxel Device 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.
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