ZyXEL Communications LTE Series User Manual page 217

Table 86 Voice > SIP > SIP Service Provider: Edit (continued)
LABEL
SIP Proxy Server Port
SIP REGISTAR Server Address
SIP REGISTAR Server Port
SIP Service Domain
RFC Support
PRACK (RFC 3262)
VoIP IOP Flags - Select VoIP inter-operability settings.
Bound Interface Name
Bound Interface Name
Outbound Proxy
Enable
Outbound Proxy Address
Outbound Proxy Port
Use DHCP Option 120 first
Chapter 17 Voice
DESCRIPTION
Enter the SIP server's listening port number, if your VoIP service provider gave you
one. Otherwise, keep the default value.
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.
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.
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 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 Supported or Required to have the Zyxel Device include a SIP Require/
Supported header field with the option tag 100rel in all INVITE requests. When the
Zyxel Device receives a SIP response message indicating that the phone it called is
ringing, the Zyxel Device sends a PRACK message to have both sides confirm the
message is received.
If you select Supported, the peer device supports the option tag 100rel to send
provisional responses reliably.
If you select Required, the peer device requires the option tag 100rel to send
provisional responses reliably.
Select Disabled to turn off this function.
Replace dial digit '#' to '%23' in SIP messages.
Remove ':5060' and 'transport=udp' from request-uri in SIP messages.
Remove the 'Route' header in SIP messages.
Don't send re-Invite to the remote party when there are multiple codecs answered
in the Session Description Protocol (SDP).
Remove the 'Authentication' header in SIP ACK messages.
If you select AnyWAN, the Zyxel Device automatically activates the VoIP service
when any WAN connection is up.
If you select MultiWAN, 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.
Select this 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).
Enter the IP address or domain name of the SIP outbound proxy server.
Enter the SIP outbound proxy server's listening port, if your VoIP service provider gave
you one. Otherwise, keep the default value.
Select this to have the Zyxel Device use DHCP Option 120 first.
LTE Series User's Guide
217