Virtual Assistant - VoIP Expert in Wholesale A-Z Termination

We are looking for a VOIP expert in buying Wholesale A-Z Termination and that can help us find the best VoIP providers to terminations toin USA and International. Top quality and rates for our outbound voip voice Like Vonage and packet8 The key Fetures 1) I am looking that VOIP Consultent work with us month to month basis. 2) Able to manage Asterisk PBX 3) Able to purchase the A to Z route good quality and best prices. 4) Able to integrate the route with website 5) day to day regular maintainence and new Asterisk server instalation and modification as per customer requirements. Work is to contact key existing VoIP providers make request for quote and then analyse best results and cost / service. We need as result a detailed analysis of various wholesale VoIP suppliers with Company Names and Contacts, Type of Routes Available to Brazil, Rates for fixed and mobile phones, Number of Channels available per account, Required Minimum Initial Payment, Minimum and Maximum Top Up Amounts, Currency of Accounts, Payment Methods and Terms of Use. Experience in VoIP is needed as we need a long term relation with a specialist.