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Trouble Shooting
Voip Application Examples
Example 5
: 3-Way Conference Call, Call Transfer, Call Waiting, Hold
Application:
The Call Transfer and 3-Way Conference Call applications are for calls among Parties A, B, and C.
Three parties are registered to SIP server with either fixed real IP or private IP. There are two kinds of call
transfer; Blind Transfer and Attendant Transfer.
Blind Transfer:
1. Party A calls Party B.
2. While in conversation, Party B may press Transfer key, and should hear a dial tone.
3. Party B enters [Party C number] # and then hang up to transfer to Party C.
Attendant Transfer:
1. Party A calls Party B.
2. While in conversation, Party B may press Transfer key, and should hear a dial tone.
3. Party B enters [Party C number] # and talks to Party C.
4. When Party B then hangs-up, Party A will transfer and connect to Party C.
3-Way Conference Call:
1. Party A calls Party B.
2. While in conversation, Party B may press Hold key to hold the call, and should hear a dial tone.
3. Party B calls Party C.
4. While in conversation, Party may press Conf. key to join in Party A for a three-way conference.
Call Waiting Application:
When a new call is coming while you are talking, you will hear an interrupt "dodo" tone and you can
press Hold key to answer the new incoming call. You may press Hold key to switch back to the previous call.
Call Hold Application:
You may press Hold key to hold the current call for a while, then press Hold key again to resume
conversations.
11. Trouble Shooting for Web Configurations:
11.1. DO NOT HEAR DIAL TONE?
When you pick up the phone and hear a busy tone, it indicates the WAN port is NOT connected. The LCD will
show Ethernet Error! Make sure the ADSL Ethernet cable is connected to the WAN port of NRX EVoIP
phone and Power Reset again.
11.2. CAN NOT ACCESS WEB PAGE?
IE Web Browser is a useful tool to configure NRX EVoIP phone. When you have difficulties in accessing the
default IP address http://192.168.123.1 of the phone, the most likely reason is that your PC might have
different subnet IP settings from 192.168.123.xxx. In this case, you must change NRX EVoIP phone's IP
address to the same subnet as your PC and NAT router.
Example: To change the NRX EVoIP IP address to the same subnet as PC and NAT router
1. Set the phone to DHCP Client mode. The NRX EVoiP phone will reboot, and LED will start flashing to get
an IP address from NAT DHCP server.
2. Press Menu_4_5 to read IP Addresses for WAN and LAN Ports, for example, 192.168.62.51.
3. Enter from IE web browser http://192.168.62.51:9999 to login to the web page for configurations
