Atec TTC-2207 - Manual (Page 7)

7
DSX-1 ISDN
SWITCH
NIU/
SMART
JACK
ISDN
NETWORK
PBX
2207
2207
Verify or troubleshoot your customers’
ISDN PRI service using the 2207’s ISDN
testing capabilities
ISDN PRI Testing
After the physical layer has been verified, testing during the provisioning of ISDN service is typically performed at the
customer premises by emulating a TE device, such as a PBX, to place and receive voice and data calls. The 2207 supports
multiple call types and provides call status results and progress reports for an additional level of detail to ensure calls
are successfully established. The reports are also useful for troubleshooting calls that are not established. When
multiple PRI lines are in use at the same location, it is often necessary to perform back-up D-Channel and NFAS testing.
By simultaneously providing the user with physical layer (T1), layer 2 (LAPD), and layer 3 (Q.931) results as well as
plain text decodes, the 2207 provides an efficient means to verify or troubleshoot the ISDN PRI service. The 2207 tests
PRI lines allowing the following:
• Test multiple call types including voice, 56K, 64K, Nx56K, Nx64K, and H0 to verify correct switch translations
for both inbound and outbound calls.
• Test data services (calls) using BER testing patterns
• Place and receive calls
• Receive call status results which provide a summary of calls
• Receive English decodes of layer 3 cause codes
• Receive full layer 3 Q.931 decodes, with the ability to print
• Place and receive calls on either T1 (secondary or primary) for NFAS configurations
• Switch from Standby D-Channel to Inservice D-Channel for verification of D-Channel back-up operation in
NFAS configurations