MCC Wholesale Voice is a voice termination and routing service for organizations that need to send outbound voice traffic to destinations outside their own network — including carriers, VoIP service providers, and high-volume voice operations. Contact MCC to discuss supported interconnection methods, destinations, and commercial terms.
MCC Wholesale Voice is a voice termination and routing service for organizations sending outbound call traffic at network scale. It is designed for carriers, service providers, and high-volume voice platforms that need to route traffic to destination networks — rather than purchasing per-seat retail calling plans. Contact MCC to confirm supported interconnection methods and technical requirements.
Unlike a business phone system — which gives individual users extensions, voicemail, and call routing — wholesale voice is a network-layer service. Traffic from your platform is routed through MCC's infrastructure to destination networks, and terminates at the called party. The buyer is typically another platform or provider, not an end-user seat.
For call-center and dialer-specific traffic, see MCC CC Routes.
Outbound voice traffic from your platform is handed off to MCC's routing infrastructure and terminated at the destination network.
Wholesale voice is typically relevant to organizations handling voice at a network or platform level — not individual business-seat buyers.
Telecom operators and internet telephony service providers that need outbound termination capacity or additional route coverage for destinations they do not serve directly.
Cloud communications platforms and resellers that build voice services on top of wholesale infrastructure — routing their customers' outbound calls through a wholesale provider.
Operations that generate significant outbound call volume — including call centers with high dialer traffic — and require a direct wholesale relationship rather than per-seat retail pricing. See also: CC Routes.
Wholesale voice buyers commonly evaluate routes using the following terminology. Confirm how these apply within MCC's specific offering when discussing routing and rates.
The ability to terminate calls to any international destination. "A" refers to the originating country; "Z" refers to the destination country. A-Z coverage is a common wholesale voice service claim — confirm supported destinations with MCC during evaluation.
Calling Line Identification (CLI) routes present the originating caller ID number to the called party. NCLI (Non-CLI) routes do not. The route type affects answer rates and is a standard selection criterion in wholesale termination. Confirm CLI/NCLI availability with MCC.
Voice traffic between carrier platforms is typically connected via SIP (Session Initiation Protocol) — the signaling standard used to set up, modify, and terminate voice sessions. The specific interconnection method used by MCC and its technical requirements should be confirmed with MCC during evaluation.
The percentage of call attempts that are answered. ASR is a standard route quality metric used to compare termination providers. Higher ASR means more answered calls per attempt. Buyers use ASR alongside ACD to evaluate route quality.
The average length of completed calls on a route. ACD indicates traffic profile and route health — short-duration calls may indicate connection quality issues or high-dialer traffic patterns.
The time between when the call is placed and when the destination phone begins ringing. Lower PDD provides a better caller experience. PDD is especially relevant in high-volume dialer traffic scenarios. See CC Routes for call-center-specific routing. For a full explanation of how termination works, see our wholesale voice termination guide.
ASR, ACD, and PDD across destination countries and traffic types (standard, dialer, short-duration).
The range of international destinations the provider can terminate to, and the route type available per destination.
How the network connection to MCC is established, what technical parameters are required, and the onboarding steps. Confirm the specific interconnection method with MCC.
How routing is priced, what destinations are covered, and how commercial arrangements are agreed. Contact MCC to discuss available options.
How routing issues are raised, how quickly they are resolved, and who is the point of contact for traffic problems.
MCC's wholesale voice offering for organizations with call-center and outbound dialer traffic requirements. If your traffic profile includes high call volumes, short-duration calls, or dialer-generated traffic, contact MCC to discuss CC Routes.
See CC RoutesA detailed explanation of how SIP trunking works — including the technical handshake process, codec selection, and how SIP compares to legacy PRI circuits.
Read the guideCarriers, MVNOs, and large enterprises route high-volume A-Z traffic over MCC's SIP interconnects. The customer stories page sets out the traffic profiles MCC handles and the products each one maps to.
Read the customer storiesThere is no public rate card. Contact MCC sales to discuss your traffic profile, destination requirements, and available options.
Reselling or wholesaling MCC services to your own customers? Partner with MCC.