Transmission tests
Two data call modes give you complete flexibility for transmission quality testing.
In Self Call you dial your own number with UTS - ISDN.
SELF TEST MODE DIAGRAM
You do this by pressing SELECT when you have scrolled to the option Õ>64 kb BERT B1Õ and
select the test length. At the prompt ÔDial Now:Õ. During the Data Call the UTS - ISDN
displays the time remaining for the test and at the end the test result.
END TO END MODE DIAGRAM
The End to End mode operates with a remote UTS - ISDN which auto answers the data call
and loops back the received data to the originating UTS - ISDN which carries out the BERT
test.
Supplementary service tests
Supplementary services and Group 4 fax teleservice are tested using the Self Call mode, The
incoming set up message is checked for the correct bearer and service. The UTS ISDN will
display ÒMSN OKÓ for example if the MSN (Multiple Subscriber Number) service is tested. So
service testing is done without incurring call charges.
D Channel packet test
When the D Channel Packet Test mode is selected UTS ISDN establishes a data link to the
network packet handler and confirms the link to the network packet handler and confirms the
link is OK or not.
Set Up Mode
When the Set Up mode is selected from the top level menu the TEI can be set to Auto or
Manual; S bus set to 100½ or high impedance termination; and the data test pattern selected.
