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DPH-80 Phone User Manual
SIP Production Test
Voice quality is not good: The SIP phone supports packet loss and network jitter to some
extend. Above these levels, the quality can be bad. The G.729 codec will have better
performance over the G.711 codec and it can be selected in the configuration.
Call hold does not work properly: The call-hold feature requires co-operation from both
ends. The behavior is not defined if the other phone does not support the hold feature.
Speakerphone does not work: The SIP phone has a speaker to support one-touch
dialing, not for a speakerphone. The other party will hear you if you are in speaker
mode but the voice quality may not be good.
Browser access
No response through browser: Check whether the SIP phone is connected to the network
and you have the correct IP address of the phone.
To access the SIP phone if the IP address is unknown: Select the factory-default option
and restart the phone. Now the phone will use factory default parameters and uses a
known IP address.
Browser displays server-busy message: It implies that another person is configuring the
SIP phone.
Browser displays logout message: Check the user name and password. Remember the
password is case sensitive.
Browser displays logout message while configuring it: It the browser is idle for more than
10 minutes the SIP phone will terminate the session. You must restart the browser.
Other functions
Entered factory default key sequence, no response: You must restart the phone.
Entered production test key sequence, no response: You must restart the phone. The SIP
phone will exit the production test mode next restart.
Entered remote upgrade key sequence, no response: You must have the software files in
TFTP server and the SIP phone should be configured with right TFTP server and file
names.
Entered remote upgrade key sequence, plays unidentified tone: The SIP phone plays a
tone during software download. The SIP phone will restart upon successful download.
Power out during remote upgrade: If anything goes wrong during software upgrade the
phone will work the previous existing software.
SIP Production Test
This section describes the production test supported by the D-Link SIP phone. The
main hardware blocks to be tested are (i) LED, (ii) Key Scan, (iii) Hook Switch, (iv) Codec
& Handset, (v) Speaker, (vi) Memory and (vii) Ethernet MAC and PHY. If a test is
successful, the MGCP phone will play a Success tone and turn on the Green LED. If a
test fails, it will play an Error tone and turn on the Red LEDs. After each test, press '1'
for going on to the next test and '0' for repeating the test again.
Note: In some tests the SIP phone cannot determine the outcome of the test and the
user must verify it. In such test cases the phone will not play any tone.
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