SBB NO 01-2024 Rehabilitation of the Existing NHQ-PCG PBX System ROM Analog PBX System to IP-Based VoIP PBX System via Sip Trunks and Re-Wiring of ICT Infrastructure and Equipment
SBB NO 01-2024 Rehabilitation of the Existing NHQ-PCG PBX System ROM Analog PBX System to IP-Based VoIP PBX System via Sip Trunks and Re-Wiring of ICT Infrastructure and Equipment
SBB NO 01-2024 Rehabilitation of the Existing NHQ-PCG PBX System ROM Analog PBX System to IP-Based VoIP PBX System via Sip Trunks and Re-Wiring of ICT Infrastructure and Equipment