16. Approve or disapprove the following statement. Provide explanation for your answer a. b.GK is the only node that sends BR.J c. Admission messages always required Bandwidth request change can be sent in three cases d. Al H323 messages are sent by terminal or GK e. Q931 is encapsulated in TCP Call model field is optional in ACF message Call model parameter instruct the terminal to establish a direct or via GK call h.MCU functionality cannot be decomposed i.Unicast LRQ message can be rejected by the GK Discovery messages are sent only when a node attempts to join a network. k.BRQ is only sent by the endpoint terminals 1.Release message and release complete messages are sent only by end terminals m.The operation of H225 and H245 is sequential Channel 0 in H245 is always needed and on H323 messages are carried over TCP only n. o. p.H245 main objective is to carry audio data over the logical channels q. Q.931 is a VoIP specific protocol while Q.932 is a traditional telephony protocol The frequency of status messages is provi ded in IRR message