The CBCC V4 Main Board (part number S30810-Q2935-A201) is a central control board (CBCC) for Siemens / Unify HiPath 3350 / HiPath 3550 phone systems.
CBCC typically stands for something like Central Board, Control & Connectivity (CBCC) it is the motherboard that handles core switching/control logic and connects other modules (voice/analog line cards, SLA etc) with the external interface and internal bus.

Price:
Price 24000.0 INR / Piece
Minimum Order Quantity : 5 Pieces
Model : STMD3 (S30810Q2217X100 / L30251U600A94)
Application : Enterprise IP/Digital telephone systems (EPABX)
Features : Provides internal power feeding for ISDN terminals, supports network clock synchronization, backward compatible with STMD2
Product Type : Digital Subscriber Trunk Module (S0 Expansion Card)
Price 8000.0 INR / Piece
Minimum Order Quantity : 10 Pieces
Model : DBSAP (S30807Q6722X)
Application : Siemens Unify HiPath 3800 communication systems
Features : Active system link signaling status LEDs
Product Type : EPABX System Expansion Control Board
Price 12000.0 INR / Piece
Minimum Order Quantity : 5 Pieces
Model : Q6928X
Application : Commercial, Industrial Usage
Features : Long life, Durable, Easy to Install, Effective Performance
Product Type : CMS
Price 17000.0 INR / Piece
Minimum Order Quantity : 5 Pieces
Model : STMD 8 (S30810Q2558X200)
Application : Enterprise PBX Phone Systems
Features : Dual TE/NT operational modes, Hotswappable, Frontpanel diagnostic LEDs
Product Type : Telecommunication Module / PBX Expansion Card