Experts involved in the management system development, QoS provisioning, and SLA negotiation; Researchers interested in the area of management and QoS assurance in IP-based networks The P1008 findings cover the negotiation process between interconnected IP network domains, as well as the reference architecture for supporting IP QoS management services. The results of P1008 build a basis for developing an Inter-operator IP QoS Provisioning Framework (IIQPF). The critical review of the existing work done by other fora (e.g. ITU-T, IETF, ETSI, 3GPP, TMF, IST projects, etc.) is needed in order to figure out the state-of art in this area, and to gain knowledge to compare these results with P1008 findings. This document covers the description of the existing frameworks chosen as relevant for the IIQPF. The descriptions are a result of reviewing process and are presented in the form of criteria tables. This form enables harmonised way of giving a brief overview of the frameworks studied. It is an additional information (annex) to the P1103 TI1 " Review of existing IP QoS activities and extension of P1008 findings "