ipDialog SipTone II, User Manual

Page: 15 / 62

15
Configuring Your Telephone (cont.)
It is best to use a SIP URL to explicitly designate the registrar. A simple network
address, e.g. 10.0.0.200, is also allowed. If you specify the registrar, your page looks
something like this:
Servers
REGISTRAR [
Manual
q
]
SIP URL [ ]
From URL [ ]
To URL [ ]
[ ] Use Domain Name
Expires [
3600
]
SIP PROXY [ ]
[ ] Forward all through proxy
[ ] Register through proxy
Server Password [ ]
[ Commit changes ]
[ Reset to defaults ]
• The to-address field contains the address of record whose registration is to be
created or updated, i.e., how you want the outside world to see you from your SIP
proxy/registrar, as in sip:user@siptone.com, where a proxy server for the siptone.com
domain forwards SIP packets to you after receiving the above SIP URL from other
users. Note that to enable keypad dialing, you must specify a registrar or proxy. If both
are specified, the proxy has precedence.
• The from-address field is the same as the to-address field except in the case of third-
party registrations on your behalf.
• The expire-time field specifies the registration duration as reported to the registrar in
units of seconds. The default is 3600 seconds, or one hour.
• If you are using a registrar and select the use-domain-name feature, your telephone
automatically creates the addresses of record in the to-address and from-address
fields. It combines the userid that you specified on the telephone-configuration page
with the local domain name obtained from DHCP or manual configuration (refer to the
network-setup page for your domain name). Note that you can change the addresses
of record at any time, even if they were generated automatically.
• Specifying a value for the proxy field causes your telephone to send various SIP
packets through the proxy indicated by the specified address or SIP URL; otherwise, it
sends all SIP packets directly to the other telephone.
• If a proxy is specified and the forward-all-through-proxy feature is
selected, all SIP packets except for SIP registration messages are sent
through the proxy;