ZyXEL Communications EX5501-B0 User Manual page 245

Each field is described in the following table.
Table 102 VoIP > SIP > SIP Service Provider > Add New Provider/Edit
LABEL DESCRIPTION
SIP Service Provider Selection
Service Provider This field displays ADD_NEW if you are creating a new SIP service provider profile or the SIP service
Selection provider name you are modifying.
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 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.
EX5501-B0 / AX7501-B0 / PX7501-B0 User's Guide
Chapter 22 VoIP
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