This counter tallies SVC VCCs established at this signalling entity for outgoing connections, the successful-completion counterpart to ciscoatmSigEmitSetupAttempts. Pairing it with EmitSetupAttempts gives the outbound call success rate, letting an admin separate trouble getting this switch's own calls through from trouble accepting calls from others, two problems with very different root causes. A healthy incoming success ratio alongside a poor outgoing one would mean the problem lies specifically with calls this switch originates, not with how it handles incoming calls.