ZyXEL Communications PMG5318-B20A, User Manual

Page: 85 / 168

Chapter 9 Voice
PMG5318-B20A User’s Guide
85
9.2.1 Dial Plan
A dial plan defines the dialing patterns, such as the length and range of the digits for a telephone
number. It also includes country codes, access codes, area codes, local numbers, long distance
numbers or international call prefixes. For example, the dial plan ([2-9]xxxxxx) does not allow a
local number which begins with 1 or 0.
Outbound Proxy
Active Outbound
Proxy Select this if the service provider has a SIP outbound server to handle voice calls. This
allows the GPON 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 GPON Device to
keep it from retranslating the IP address (since this is already handled by the outbound
proxy server.
Outbound Proxy
Address Enter the IP address or domain name of the SIP outbound proxy server.
Outbound Proxy
Port Enter the outbound proxy server’s listening port, if your VoIP service provider gave you
one. Otherwise, keep the default value.
SIP Transport Method
SIP Transport
Method Selection Select the transport layer protocol UDP or TCP (usually UDP) used for SIP.
Dialing Interval Selection
Dialing Interval
Selection Select the number of seconds the GPON Device waits before placing a dialed call.
DTMF Method
DTMF Mothod
Selection Control how the GPON Device handles the alphanumeric keypad tones. You should use
the same mode the VoIP service provider uses.
RFC 2833 - 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. Codecs that use compression can
distort the tones.
SIP INFO - send the DTMF tones in SIP messages.
Fax Option
G.711
FaxPassthrough Select this option to send and receive fax messages over the network or Internet using
VoIP. By encoding fax data as audio data, faxes may be susceptible to packet loss and
other errors. However, as this standard is considerably older than T.38, it is more
compatible with older or obsolete systems.
T.38 Fax Relay Select this option to send and received fax messages over the network or Internet using
IP. This is the standard fax transmission protocol for sending faxes over networks rather
than phone lines.
Dialing Plan
Dialing Plan Create dialing plan rules here. See Section 9.2.1 on page 85 for more information. Click
the Help icon to display guidelines for creating dialing plan rules.
Apply Click this to save your changes.
Cancel Click this to exit the screen without saving any changes.
Basic Click this to hide the advanced settings on this screen.
Table 30
VoIP > SIP > SIP Service Provider (continued)
LABEL DESCRIPTION