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VeriSign® TCAP CLASS Messaging |
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How It Works
The VeriSign network is interconnected to virtually
all RBOCs and ILECs, enabling easy access delivery of CLASS features
regardless of the switch location.
Off-Network TCAP Query
1. A carrier’s TCAP query (such as automatic call-back)
passes through VeriSign’s network, where an intermediate GTT determines
the appropriate STP routing.
2. The query is directed to the LATA STP, where a final
GTT determines the switch point code and final routing.
3. The response is Message Transfer Part, routed back
to the carrier’s switch.
4. For TCAP queries launched from another LEC, the
procedure is reversed, with the intermediate GTT performed at the LATA
STP and the final GTT performed by VeriSign.
On-Network TCAP Query
1. Carrier’s TCAP query passes through VeriSign’s network
as if bound for a LEC.
2. VeriSign performs the final GTT and forwards to
the customer switch.
3. The response is MTP-routed back to carrier’s switch
through VeriSign’s STPs.
4. If another VeriSign customer launches a TCAP CLASS
message to carrier, the above process is reversed.
Need More Information?
Speak with a sales representative at:
650-426-5310 or request
information online.
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