Februaray-2006 Page 11 / 42 MasterVoIP VoIP to GSM Gateway
3.1.4 Placing Phone Calls
3.1.4.1 Calling phone or extension numb ers
There are currently two met hods to make an extension number call:
1. Dial the extension numbe r directly and wait for 4 seconds. (Def ault “No Key Entry Timeout”).
Or:
2. Dial the number directl y, and press # (assuming that “Use # as dial key” is selected in the web configura tion).
Other functions available during the call are call-waiting/flash, call-transf er, and call-forw arding s upplementary call
services.
3.1.4.2 Direct IP call s
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 be tween two phones, if:
Both VOIP Client ATA and the other VoIP device (i.e., another VOIP C lient ATA or other SIP products) have p ublic IP
addresses, or
Both VOIP Client ATA and the other VoIP device (i.e., another VOI P Client ATA or other SIP produces) are on the same
LAN using private or public IP addresses, or
Both VOIP Cli ent ATA and the other VoI P device (i.e., another VOIP Client ATA or other SIPprod ucts)
can be connec ted through a router usi ng public or private IP addresses.
To make a direct IP call, fir st pick up the analog phone or turn on the speakerphone on the analog
phone, then access the voic e 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 targ et IP address to make a call.
The follow is a table of th e 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 Prom pt with optio n 47, then 19 2168000160
followed by pressing the “#” key if it is configured as a send key or wa it 4 seconds. In this case, the
default destination port 506 0 is used if no port is specified.
If the target IP address/port is 192.168.1.20:5062, then the diali ng convention would be:
Voice Prom pt with optio n 47, then 19 2168001020 *45062
followed by pressing the “#” key if it is
configured as a send key or wait for 4 seconds.