Cisco RSVP Agent
LeaderWe securely connect everything to make anything possible.
Est 1984|Valuation $449.2B|Raised $49.2B
We securely connect everything to make anything possible.
Published May 16, 2026
Buyers often compare RSVP Agent with other CAC approaches available within the CUCM ecosystem and with network/SD-WAN QoS strategies.
Cisco documentation and CUCM system guides indicate that RSVP can be advantageous over static location-based CAC in complex topologies, while also noting alternative mechanisms such as Enhanced Location CAC. Community and practitioner sources emphasize that ELCAC (LBM) is another option and that operations and testing are required to ensure correct behavior.
Organizations migrating to cloud calling (for example, Webex Calling or Teams Phone) may shift QoS and CAC responsibility toward WAN QoS, SD-WAN policy, or provider-managed QoS. Session Border Controllers (AudioCodes, Ribbon, Oracle Acme Packet) address border interop, security, and session management but do not directly replicate a CUCM-controlled RSVP Agent's role in WAN reservations.
| Starting Price | No standalone published fee; feature is bundled within IOS/IOS XE UC-enabled router licensing entitlements | Included in CUCM licensing; requires LBM service and planning | Included in CUCM licensing |
| Most suitable for | Complex or dynamic WAN topologies where network-signaled reservations are desired | Complex topologies modeled within CUCM where media-path insertion is not desired | Simple hub-and-spoke or predictable links |
| Key technical strength | Network-signaled reservation and topology-aware CAC | CUCM-managed topology modeling (links/weights) without RSVP media insertion | Simplicity and lower operational complexity |
| Key operational weakness | Increased configuration complexity; media-resource insertion; capacity planning and documented restrictions | Configuration complexity; reliance on accurate CUCM topology modeling | Limited suitability for redundant/multi-tier/meshed designs |
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