South Africa - Telephony Infrastructure SIP and Telephone Usage Support, Maintenance, Migration Service

The buyer requires a vendor to provide telephony infrastructure SIP and telephone usage support, maintenance, and migration services. The vendor must deliver a secure solution that runs natively or integrates with existing Microsoft Teams, existing third-party services, and the current Audio Codecs System. The requested scope includes providing a 30-channel SIP trunk, porting agency numbers from the current provider, maintaining the current voice calling solution, supporting the hosted Session Border Controller environment, and providing a breakdown of local and international call rates. Additionally, the vendor must configure the firewall, internal networks, and all 130 user licenses across PCs, laptops, mobile devices, and the switchboard for offices in Kempton Park and a remote site. To qualify, the bidder must be a South African organization. The buyer accepts digital responses via email or online and seeks proposals for the budget. A virtual compulsory briefing session takes place on September 15, 2026. The vendor will perform the work both onsite and offsite.