Founded in 1998, AOS Consulting in Chula Vista's northeast corridor provides vendor-neutral telecommunications advisory services from Harold Place near Rolling Hills Ranch. The firm evaluates hosted VoIP, SIP trunk, MPLS, and metro Ethernet solutions across multiple carriers, applying the same cost-analysis discipline that Enterprise Bank & Trust brings to commercial lending decisions. AOS brokers unified communications platforms, disaster-recovery failover circuits, and colocation agreements without representing any single carrier, ensuring each recommendation reflects actual network performance data. That vendor-agnostic model extends to trade-show connectivity, where exhibitors coordinating displays through Expo Outfitters Exhibit Services often need short-term bandwidth provisioning for live demos. Core engagements include MPLS-to-SD-WAN migration audits, multi-site SIP trunk consolidations, and wireless expense management reviews that benchmark per-megabit costs against Tier 1 and Tier 2 carrier tariff schedules.