NOTE:
• “*” shifts down to the next menu option
• “#” returns to the main menu
• “9” functions as the ENTER key in many cases to confirm an option
• All entered digit sequences have known lengths - 2 digits for menu option and 12 digits for IP
address. For IP address, add 0 before the digits if the digits are less than 3 (like 192.168.0.26
should be key in like 192168000026, no dot needed while input). Once all of the digits are
collected, the input will be processed.
• Key entry can not be deleted but the phone may prompt error once it is detected
P
LACING PHONE CALLS
CALLING PHONE OR EXTENSION NUMBERS
There are currently two methods to make an extension number call:
a) Dial the numbers directly and wait for 4 (default) seconds.
b) Dial the numbers directly, and press # (assuming that “use # as dial key” is selected in the web
configuration).
E
XAMPLES:
• To dial another extension on the same proxy, such as 1008, simply pick up the attached phone,
dial 1008 and then press the # or wait for 4 seconds.
• To dial a PSTN number such as 6266667890, you may need a prefix number followed by the
phone number. Please check with your VoIP service provider for this information. If your phone is
assigned a PSTN-like number such as 6265556789, you will most likely follow the rule 1 + (the
number) – 16266667890. Press # or wait for 4 seconds.
DIRECT IP CALLS
Direct IP calling allows two parties, that is, a HT with an analog phone and another VoIP Device, to talk to
each other in an ad hoc fashion without a SIP proxy. This kind of VoIP calls can be made between two
parties if:
• Both HT503 and other VoIP Device (i.e. another Handytone ATA or Budgetone SIP phone or
other VoIP unit) have public IP addresses, or
• Both HT503 and other VoIP Device are on the same LAN using private IP addresses, or
• Both HT503 and other VoIP Device can be connected through a router using public or private IP
addresses (with necessary port forwarding or DMZ).
T
O PLACE A DIRECT IP CALL:
1. Pick up the analog phone (or use the speakerphone),
2. Access the voice menu prompt by dial “***”
3. Dial “47” to access the direct IP call menu
4. At voice prompt “Direct IP Calling” and dial tone, enter a 12-digit target IP address to
make a call.
Destination ports can be specified by using “*4” (encoding for “:”) followed by the port number.
Grandstream Networks, Inc. HT503 User Manual Page 10 of 35
Firmware 1.0.0.6 Last Updated: 6/2007