Making Calls Using Ip Address; Receiving Calls; Call Hold; Call Waiting And Switch Between Calls - Grandstream Networks GXP-2000 User Manual

4.4.4 Making Calls using IP Address

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 phones have public IP addresses, or
• Both phones are on a same LAN using private or public IP addresses, or
• Both phones can be connected through a router using public or private IP
addresses.
To make a direct IP calling, disable "Use Random Port" option at advanced web
configuration page, and then press "Menu" button, and then select "Direct IP Call"
submenu to enter the direct IP call interface, and then enter the 12-digit target IP address,
and then press Menu button twice to make the call.
From 1.1.0.13 firmware build, GXP2000 begins to offer Quick IP-call feature: first make
Handset/SPEAKER/Headset off hook, and then press # key and enter the last 3-digits of
the target IP address, and then press the SEND key or # key. To use this feature, you need
to enable Quick IP-call mode in the advanced web configuration page.

4.4.5 Receiving Calls

There are two states when GXP-2000 receives a call:
1. When receiving an initial call. Besides ringing with selected Ring Tone, the
corresponding account LINE will flash in red, taking Handset/SPEAKER/Headset
off hook will enable user to hear the calling party in Handset/SPEAKER/Headset.
2. When receiving second or more incoming calls, besides playing stutter Call
Waiting tone, GXP-2000 will pick up the corresponding account LINE or the next
available LINE as described in section 4.4.2.

4.4.6 Call Hold

While in conversation, pressing the "HOLD" button will put the other party on hold. User
can resume the conversation by pressing the corresponding LINE.
automatically put the current line on "HOLD" by pressing another available LINE for
making or receiving other phone calls.

4.4.7 Call Waiting and Switch between Calls

GXP-2000 can support up to 11 Lines, user can switch to another line for making or
answering calls and automatically put an ACTIVE call on Hold.
17
User will also