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Each field is described in the following table.
Table 122 VoIP > SIP > SIP Service Provider > Add new provider/Edit
LABEL
DESCRIPTION
SIP Service Provider Selection
Service Provider
Select the SIP service provider profile you want to use for the SIP account you configure in this
Selection
screen. If you change this field, the screen automatically refreshes.
General
SIP Service
Select Enable SIP Service Provider to enable the SIP service provider.
Provider
SIP Service
Enter the name of your SIP service provider.
Provider Name
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
Enter the IP address or domain name of the SIP server provided by your VoIP service provider.
Address
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
Enter the SIP server's listening port number, if your VoIP service provider gave you one.
Port
Otherwise, keep the default value.
SIP REGISTRAR
Enter the IP address or domain name of the SIP register server, if your VoIP service provider gave
Server Address
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
Enter the SIP register server's listening port number, if your VoIP service provider gave you one.
Server Port
Otherwise, enter the same port number you entered in the SIP Server Port field.
SIP Service
Enter the SIP service domain name. In the full SIP URI, this is the part after the @ symbol. You can
Domain
use up to 127 printable ASCII Extended set characters.
RFC Support
PRACK (RFC
PRACK (RFC 3262) defines a mechanism to provide reliable transmission of SIP provisional
3262, Require:
response messages, which convey information on the processing progress of the request. This
100rel)
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
Replace a dial digit "#" with "%23" in the INVITE messages.
digit '#' to '%23'
in SIP messages
Remove the
Remove the 'Route' header in SIP packets.
'Route' header
in SIP messages
Bound Interface Name
Bound Interface
If you select Any_WAN, the Zyxel Device automatically activates the VoIP service when any LAN
Name
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
Enter the IP address or domain name of the SIP outbound proxy server if your VoIP service
Address
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
Enter the SIP outbound proxy server's listening port, if your VoIP service provider gave you one.
Port
Otherwise, keep the default value.
Chapter 23 Voice
VMG/XMG Series User's Guide
298
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