Grandstream Networks HANDYTONE 486 - Manual (Page 9)

HandyTone-486 User Manual Grandstream Networks, Inc.
9
5.2 Make Phone Calls
5.2.1 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.
(this default parameter can be adjusted in the web configuration page)
b) Dial the numbers directly, and press # (assuming that “use #” as dial key is selected in web
configuration).
Other functions available during the call are call-waiting/flash, call transfer (both blind and consultant)
and call forwarding, assume that an ITSP is used.
5.2.2 Direct IP calls
Direct IP calling allows two parties, that is, a HandyTone 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 HandyTone ATA and other VoIP Device(i.e., another HandyTone ATA or Budgetone SIP
phone or other VoIP unit) have public IP addresses, or
• both HandyTone ATA and other VoIP Device are on the same LAN using private or public IP
addresses, or
• Both HandyTone ATA and other VoIP Device can be connected through a router using public
or private IP addresses (with necessary port forwarding or DMZ).
To make a direct IP to IP call, first pick up the analog phone or turn on the speakerphone on the analog
phone, then follow Section 4.1 with voice prompt 47, followed by the 12-digit target IP address.
Destination ports can also be specified using *4 (encoding for “:”) followed by the encoded port
number. Following is a table of the encoding scheme for the most commonly used characters:
Input Encoding
00 0
01 1
02 2
03 3
04 4
05 5
06 6
07 7
08 8
09 9
*0
. (dot character)
*4 : (column character)