Q5) message.txt --> 01011011010100001101011001110101010111010101101101000110110101000011010010011101 

Q2(10p). In a frame constructed in the 2.nd layer of the ISDN, there are 16 bits for B1 and 16 bits for B2 Channels, and 4 control bits and 12 framing bits for the D channel. The duration necessary for the transmission of a single frame is 250 psec a) Write down the channel capacities for B1, B2 and D channels. (Write down the calculations, don't just give the results) b) Calculate the transmission speed in the U interface. 03.(20p) An ISDN subscriber has 3 ISDN phones, 1 ISDN fax machine, 1 PC with an ISDN communication card, 3 non-ISDN phones, 2 Terminal Adapters (TA). And one network termination unit (NTI). The subscriber wants to connect all of her/his devices to the ISDN Exchange. a)Is it possible to connect all the endpoints (devices) to get ISDN service? b)Draw a diagram that shows how to connect these components to the network, indicate the Sor T interfaces, U interfaces, the subscriber line and the ISDN Exchange. 04.(10p) Draw the Call setup and Release for an ISDN call in which Calling Subscriber A ends the call. 05(10p). Open the message.txt file in the exam folder. This binary number is the representation of eight (8) successive ASCII characters in Asynchronous transmission. Here, during the transmission, start bit is 0 (zero), Parity bit is 0 (zero), Stop bit is 1 (one). Decode the characters in the file. 06.(35p) Write the Python code that performs the decoding in Q5. Q2(10p). In a frame constructed in the 2.nd layer of the ISDN, there are 16 bits for B1 and 16 bits for B2 Channels, and 4 control bits and 12 framing bits for the D channel. The duration necessary for the transmission of a single frame is 250 psec a) Write down the channel capacities for B1, B2 and D channels. (Write down the calculations, don't just give the results) b) Calculate the transmission speed in the U interface. 03.(20p) An ISDN subscriber has 3 ISDN phones, 1 ISDN fax machine, 1 PC with an ISDN communication card, 3 non-ISDN phones, 2 Terminal Adapters (TA). And one network termination unit (NTI). The subscriber wants to connect all of her/his devices to the ISDN Exchange. a)Is it possible to connect all the endpoints (devices) to get ISDN service? b)Draw a diagram that shows how to connect these components to the network, indicate the Sor T interfaces, U interfaces, the subscriber line and the ISDN Exchange. 04.(10p) Draw the Call setup and Release for an ISDN call in which Calling Subscriber A ends the call. 05(10p). Open the message.txt file in the exam folder. This binary number is the representation of eight (8) successive ASCII characters in Asynchronous transmission. Here, during the transmission, start bit is 0 (zero), Parity bit is 0 (zero), Stop bit is 1 (one). Decode the characters in the file. 06.(35p) Write the Python code that performs the decoding in Q5