AltiGen comm AltiGen IP Phone IP720 User Manual

IP 720 User Manual 33
Dialing an IP Number Directly from the IP 720
To dial an IP number directly from the IP 720 phone set, enter the IP 
address, using the * key to enter periods and followed by the # key.
Note: This works only when the IP 720 is operating in Basic mode.
If the IP 720 is configured for a public IP address, you can call other public 
IP address devices. If the IP 720 is configured for a private IP address, you 
can call other private IP address devices that you can “see” or that are on...

 34    IP 720 User Manual  

IP 720 User Manual  35
Appendix A
Specifications
Network 
Protocols•SIP, RTP, RTCP, TFTP, TCP, UDP, DHCP, DNS, ARP, ICMP, 
Telnet
Call Control 
Protocols•SIP
Audio 
Standards
•Codec: ITU G.711 (PCM), two low bit rate (G.723.1 and G.729A 
/ G.729AB)
•This phone does not support G.722 or G.711 A-Law.
•Acoustic Echo cancellation supporting high-quality 
speakerphone
•Full-duplex
Keypad 
Features & 
Handset
•12 standard dialing keys: 0-9, *, #
•16 feature keys: Redial, Hang-up/Release, Hold, Intercom,...

Troubleshooting
36 IP 720 User Manual
Troubleshooting
The following table provides help for the most common problems an end 
user may encounter. For IP 720 phone questions or problems not listed 
here, contact AltiGen Technical Support.
Memory
•Flash ROM: 4M, stores boot ROM, software imaging and 
configuration data, DSP images.
•DRAM: 8M, stores runtime program and data.
Headset
•Headset RJ-9 port
Important: Contact AltiGen for the most current list of certified 
headsets.
The pin outlet for headset...

Appendix A
IP 720 User Manual  37
Image update failed. If 
setting Boot Download 
to Yes, after the phone 
reboots and if the setting 
still says Yes, the boot 
failed.•Check the IP 720 phone’s IP address, network, 
default gateway settings.
•Check the network connection.
•Check the TFTP server IP address and make sure the 
TFTP server is running.
•PING from the TFTP server to the IP 720.
IP phone registered then 
goes back to Basic mode
•Check network connectivity by pinging from 
AltiServ to the IP...

LCD Messages
38 IP 720 User Manual
LCD Messages
Local Menu Configuration Messages
The following messages may be displayed in the LCD when accessing the 
IP 720 phone’s menu:
Register failed
•Check to make sure the extension number and 
extension password are set up properly and that the 
IP extension is enabled.
•Check to make sure the IP Phone Service is started 
in MAXCS.
•If IP phone is associated with a physical phone (with 
the same extension number), use #27 to activate the 
IP phone to normal...

Appendix A
IP 720 User Manual  39
IP Phone Running Messages
The following messages may be displayed in the LCD when running the  
IP 720:
MessageDefinition
AW UNREACHABLE!Failed to connect to the AltiGen phone server. The user 
is trying to register the IP phone with an invalid IP 
phone’s IP address or the AltiGen Phone Servers IP 
address is invalid.
Or, the network connection is lost in offhook or connect 
state.
Refer to “AW is unreachable” section of 
“Troubleshooting” on page 36. 
Basic-Idle!IP...

LCD Messages
40 IP 720 User Manual
IP Phone Boot Messages
The following messages may be displayed in the LCD when booting the  
IP 720:
REGISTERING!User entered #27 to manually register the IP extension.
REMOVE OLD EXT.When #27 is entered, the extension/password 
configuration in the IP phone is removed.
WRONG PASSWORD!Registration failed because of invalid extension 
password.
MessageDefinition
Boot DoneThe phone successfully booted.
CHECK FWChecking firmware.
CHECK MEMORYChecking memory.
INIT...

IP 720 User Manual  41
Glossary
A 
ASCII - American Standard Code for Information Interchange.
B
Boot - to cause the computer to start executing instructions.
BPS - Bits Per Second. The number of bits transmitted per second.
C
configure - to determine and assign the equipment cabinet or chassis contents and 
location of each card, as well as software parameters.
D 
DHCP (Dynamic Host Configuration Protocol) - a protocol that lets network 
administrators manage centrally and automate the assignment of...

42 IP 720 User Manual
E
extension number - an arbitrary number of two to five digits that matches a station 
to a particular user.
F
Firewall - a set of related programs, located at a network gateway server, that 
protects the resources of a network from users of other networks.
FLASH - a sudden brief signal. Activated by pressing the Flash button, or by a 
quick press and release of the receiver button (switch hook).
FXS - Foreign Exchange Subscriber. An analog interface for direct connection of a...