Grandstream Networks 200 User Manual

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•  To dial another extension on the same proxy, such as 1008, simply pick up 
handset or press speakerphone, dial 1008 and then press the “SEND” button.  
•  To dial a PSTN number such as 6266667890, you might need to enter in some 
prefix number followed by the phone number. Please check with your VoIP 
service provider to get the information. If you phone is assigned with a PSTN-like 
number such as 6265556789, most likely you just follow the rule to dial 
16266667890 as if you were calling from a regular analog phone, followed by 
pressing the “SEND” button.  
 
4.3.3  Make Calls using IP Address 
 
Direct IP calling allows two parties, that is, a BudgeTone 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 BudgeTone phone and other VoIP Device(i.e., another IP Phone or 
BudgeTone SIP phone or other VoIP unit) have public IP addresses, or  
•  Both BudgeTone phone and other VoIP Device are on the same LAN using 
private or public IP addresses, or  
•  Both BudgeTone phone and other VoIP Device can be connected through a router 
using public or private IP addresses (with necessary port forwarding or DMZ).  
 
This model has the ability to dial an IP address under the same LAN segment by simply 
pressing the last octet in the IP address. 
 
In the Advanced Settings page there is an option "Use Quick IP-call mode", by default it 
is set to No. When this option is set to YES, and #XXX is dialed, where X is 0-9 and 
XXX <=255, phone will make direct IP call to aaa.bbb.ccc.XXX where aaa.bbb.ccc 
comes from the local IP address REGARDLESS of subnet mask. 
 
#XX or #X are also valid so leading 0 is not required (but OK). 
 
eg.  
192.168.0.2 calling 192.168.0.3 just dial #3 follow by SEND or # 
192.168.0.2 calling 192.168.0.23 just dial #23 follow by SEND or # 
192.168.0.2 calling 192.168.0.123 just dial #123 follow by SEND or # 
 
192.168.0.2 dial #3 and #03 and #003 has same effect --> call 192.168.0.3 
 
Note:- If you have a SIP Server configured, Direct IP-IP call will still work. However, if 
you are using STUN, Direct IP-IP call will also use STUN. 
 
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