Asterisk-experts: Help design a scalable redundant Asterisk multi-server architecture

We need assistance from an Asterisk expert designing a VOIP system architecture that is redundant and scalable. To bid on this project, you should have experience designing or administering a multi-server Asterisk environment including a SIP proxy. **Please see the attached document for details.** **Deliverables:** 1. Provide written answers to the questions in our document 2. Be available for up to 2 hours to clarify our follow-up questions over IM or phone ? **In your bid, please:** 1. Describe what scale VOIP platform you've designed or administered before. How many servers, SIP proxy, and database? 2. Whether you'd be comfortable speaking on the phone with us. Not a requirement, but a plus. 3. Confirm that you've read the attached document, and state how confident you are in being able to answer our questions. 4. State your hourly rate in case we want to hire you again on a flex-time basis