Pearson H11-879 New Attempt

U1900 and the original traditional PBX can be connected through () to protect customers' early investment () (Multiple choice)

If AAC_LD uses a coding rate of 48kbps and a packing time of 20ms, what is the IP bandwidth occupied by the codec () kbps

The terminal number or name needs to be protected in the SMC2.0 system to avoid accidental modification. The most appropriate method is () (single choice)

If IP phone A fails to register with U1900, which of the following situations will not be the cause of the registration failure? ()