Signalling Unit Types and Functions

What is the function of Message Signal Units (MSU) in the MTP?

Containing information for signalling link operation
Transferring user messages (correct)
Used for alignment purposes
Maintaining acknowledgement cycle

What type of information do Link Status Signal Units (LSSU) contain?

Signalling network management messages
User messages
Acknowledgement cycle
Alignment information (correct)

What is the primary purpose of Fill-in Signal Units (FISU)?

Aligning the signalling link
Transferring user messages
Maintaining acknowledgement cycle when no user messages are sent (correct)
Maintaining acknowledgement cycle

What is the purpose of the Backward Sequence Number (BSN)?

Error control acknowledgement carrier (B) Signup and view all the answers

What is the bit pattern of a flag used in the SUs?

01111110 (D) Signup and view all the answers

How are consecutive flags used in the event of overloading in the signalling link?

For alignment purposes (A) Signup and view all the answers

What is the purpose of a signalling route in the context of the text?

To define the communication path between two SPs (A) Signup and view all the answers

How are signalling routes handled between two Service Providers (SPs)?

Distributed over several different routes (B) Signup and view all the answers

What is the significance of the two levels in the worldwide signalling network?

They are functionally independent of each other (D) Signup and view all the answers

What does the Message Transfer Part (MTP) represent in CCS7?

User-neutral means of message transport (C) Signup and view all the answers

How does a mixed mode signalling network differ from a uniform mode signalling network?

It combines associated and quasi-associated modes (C) Signup and view all the answers

What describes each user part within CCS7?

Contains functions, protocols, and coding for specific user types (C) Signup and view all the answers

What is the prime function of SIP protocol in the Next Generation Network?

Establish and manage multimedia sessions over IP networks (A) Signup and view all the answers

Which layer in the SIGTRAN protocol stack provides the real-time reliable transmission service required by SCN Signaling?

Signaling transmission layer (D) Signup and view all the answers

What is the role of the Media Gateway Controller (MGC) in the Signaling transmission function model?

Controls the trunk based on instructions from MGC (D) Signup and view all the answers

In the SIGTRAN protocol, which layer provides the standard primary language interface with SCN Signaling?

Signaling adaptation layer (B) Signup and view all the answers

Which protocol has been chosen as the session control protocol for the Next Generation Network?

SIP (A) Signup and view all the answers

What does SIGTRAN stand for in the context of telecommunications?

Signaling Transport (D) Signup and view all the answers

What functionality do the LMG's in BSNL provide?

Voice and internet services (B) Signup and view all the answers

What is the difference in capacity between UTStarcom LMG B1205 and B1205E?

B1205 has a capacity of 256 lines, B1205E has a capacity of 512 lines (B) Signup and view all the answers

How is the ratio of voice line cards to ADSL cards in UTStarcom LMGs?

4:1 (B) Signup and view all the answers

What type of services does the UA5000 Universal Access Unit by Huawei provide access to?

Narrowband and broadband services (D) Signup and view all the answers

In BSNL, which equipment is provided for PRI/BRI facility?

IAG equipment (B) Signup and view all the answers

What is the purpose of the UA5000 Universal Access Unit in the context of telecom services?

Accessing large-capacity, high-rate integrated services (D) Signup and view all the answers

What is one of the features of signaling in PSTN mentioned in the text?

High performance and flexibility (D) Signup and view all the answers

How are the signaling messages transmitted in CCS7?

Via separate signaling links (D) Signup and view all the answers

What is the typical transfer rate used in digital networks according to the text?

64 Kbit/s (C) Signup and view all the answers

Why are signaling links always available even during existing calls?

For automatic supervision and control of the signaling network (D) Signup and view all the answers

What is one purpose of the CCS7 signaling links?

Connecting signaling points in a communication network (D) Signup and view all the answers

Which type of media can be used for signaling according to the text?

Cable (copper, optical fiber) (A) Signup and view all the answers