การดู
2:50
How to forward calls using Avaya IP Office Manager software
1:43
Polycom Skyline VVX 250: How do I set up call forwarding?
2:05
Grandstream GXP1630 Call Forwarding
1:59
T42S Call Forwarding
2:12
How to Transfer Calls using Toshiba DP5000 & IP5000 Phones
1:12
Softkey attended transfer - Grandstream 2601 | Tinkle
1:45
Cisco VoIP: How To Transfer A Call
0:44
Polycom VVX500 Setting Call Forwarding / Call Divert