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Signaling System 7 (SS7) Gateway Solution for Internet Access

Table of Contents:
Definition and Overview
1. Introduction
2. Existing Scheme for Internet Connection
3. SS7 Gateway Solution
4. Internal Architecture and Functional Overview
5. Processes of the SS7 Gateway
6. Summary of Benefits
7. Conclusion
Self-Test
Glossary
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Self-Test
1. Despite their many other benefits, SS7 gateways cannot alleviate PSTN overcrowding.
a. true
b. false
2. The lengthy connection time for Internet users has created a heavy burden on the PSTN.
a. true
b. false
3. Adding voice-based circuit switching infrastructure for carrying packet-oriented data can lessen the congestion of the PSTN rather inexpensively.
a. true
b. false
4. The processes of an SS7 gateway include an NAS line controller.
a. true
b. false
5. The average call made by Internet users is _______, which greatly exceeds typical ____ telephone calls for which the telephony network was designed.
a. 18; two-minute
b. 20 to 40 minutes; two- to three-minute
c. two hours; 45-minute
d. seven minutes; one-minute
6. Based on one estimate, a large LEC spends about ______ per year in additional costs just for Internet-related load balancing.
a. $50,000
b. $800,000
c. $2 million
d. $30 million
7. In the SS7 gateway solution, what is bypassed?
a. all switches
b. all IMTs
c. only the ingress switch
d. all switches and IMTs except the ingress switch
8. In the SS7 scheme, to what are the NAS devices connected?
a. two identical WANs
b. two identical IP WANs
c. one IP WAN that is dedicated for communication between the gateway and the NAS modules
d. one IP WAN that is the data network that carries data between the end Internet users and the ISPs
e. c and d
9. What is the main goal for deploying an SS7 gateway?
a. to create virtual-switch architecture
b. to create IMT–driven switch architecture
c. to use existing architecture more efficiently
d. to bypass switching entirely
10. Benefits of an SS7 gateway include which of the following?
a. cost savings and competitive advantage
b. the bypassing of most switch ports and IMTs in an Internet connection
c. using existing telephone lines to the end users
d. availability of services
e. manageability
f. all of the above

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