The Organization for Security and Co-operation in Europe (OSCE) hereby seeks Proposals from qualified vendors, for the provision of telephone communication services to the OSCE, according to the requirements as defined in the enclosed Terms of Reference. Clarification Note 1 published on 13.02.2025 Clarification Note 2 published on 21.02.2025 Tender documents can be downloaded by clicking on the link in the "Links" tab.