Dterm Ip Call Information Display - NEC Univerge SV8500 Operation And Maintenance Manual

13. DTERM IP CALL INFORMATION DISPLAY

During conversation, real-time Call Information (Codec, Payload Size, Lost Packet, etc.) can be displayed in
LCD on DtermIP by pressing Call Information Display Key assigned as FKY or Soft Key. The Call Information
is automatically updated every five seconds.
13.1Operation
For operations on the terminal side, refer to Operating Procedure of [T-65] on Data Programming Manual -
Business.
13.2Examples of Using Logs for Solution
<Example 1 - Packet Loss - >
(1) Brief
Call is disconnected.
(2) Cause
Due to unmatched duplex link between switches or network load, RTP packets are discarded in the network.
(3) Checking the Call Information Display helps to find the cause.
When the decreasing number displayed for 1.Lost Packet in Call Information Display is checked, it is noticed
that RTP packets are discarded while the DtermIP is trying to receive RTP packets.
<Example 2- Checking Configuration Contents- >
(1) Brief
Codec/Payload Size can be checked.
(2) Checking Codec/Payload Size by using Call Information Display.
Using Call Information Display, which displays Codec/Payload Size, makes it easy to check Codec/Payload
Size.
Lost RTP Packet
Codec
Pay Load Size
DtermIP
CHAPTER 2
IP Network
Real-time Call Information is
displayed.
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Operations of SV8500 Server
DtermIP