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Februaray-2006 Page 11 / 42 MasterVoIP VoIP to GSM Gateway
3.1.4 Placing Phone Calls
3.1.4.1 Calling phone or extension numbers
There are currently two methods to make an extension number call:
1. Dial the extension number directly and wait for 4 seconds. (Default “No Key Entry Timeout”).
Or:
2. Dial the number directly, and press # (assuming that “Use # as dial key” is selected in the web configuration).
Other functions available during the call are call-waiting/flash, call-transfer, and call-forwarding supplementary call
services.
3.1.4.2 Direct IP calls
Direct IP calling allows two phones to talk to each other in an ad hoc fashion without a SIP proxy.
VoIP calls can be made between two phones, if:
Both VOIP Client ATA and the other VoIP device (i.e., another VOIP Client ATA or other SIP products) have public IP
addresses, or
Both VOIP Client ATA and the other VoIP device (i.e., another VOIP Client ATA or other SIP produces) are on the same
LAN using private or public IP addresses, or
Both VOIP Client ATA and the other VoIP device (i.e., another VOIP Client ATA or other SIP products)
can be connected through a router using public or private IP addresses.
To make a direct IP call, first pick up the analog phone or turn on the speakerphone on the analog
phone, then access the voice menu prompt by dial “***” or press the button on the HT286, and dial
“47” to access the direct IP call menu. User will hear a voice prompt “Direct IP Calling” and a dial
tone. Enter a 12-digit target IP address to make a call.
The follow 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)
Examples:
If the target IP address is 192.168.0.160, the dialing convention is
Voice Prompt with option 47, then 192168000160
followed by pressing the “#” key if it is configured as a send key or wait 4 seconds. In this case, the
default destination port 5060 is used if no port is specified.
If the target IP address/port is 192.168.1.20:5062, then the dialing convention would be:
Voice Prompt with option 47, then 192168001020*45062
followed by pressing the “#” key if it is
configured as a send key or wait for 4 seconds.