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.
Carriers and platforms describe the same service in several ways. This is what each term means on this page. For how the market itself works — rate decks, direct and transit routes, where margin sits — read how the wholesale voice market works.
Voice capacity bought in bulk by carriers, ITSPs, voice platforms and resellers, usually priced per minute by destination rather than per user. "Wholesale VoIP" names the same market with the emphasis on IP interconnection instead of legacy circuits.
Delivering an outbound call to the network that serves the number being called. A termination provider accepts your traffic and hands it on — directly or through other carriers — to that network. Termination is the service this page describes.
Termination where your traffic reaches the provider over an IP connection, typically signalled with SIP. The interconnection method MCC uses for your platform, and its technical parameters, are agreed during onboarding.
The opposite direction: inbound calls from the phone network to your numbers. It is a separate service from termination. If you need inbound capacity as well, raise it with MCC rather than assuming it is included.
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, covered in more depth in VoIP routes explained. Confirm how these apply within MCC's specific offering when discussing routing and rates.
A rate deck that quotes every destination a provider carries, from the first country alphabetically to the last. It describes the breadth of a price list, not the quality of each route on it. Confirm the destinations MCC supports for your traffic 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 — CLI vs NCLI routes explains the trade-off. 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.
CLI and NCLI are the two primary route types in wholesale voice termination. The choice affects how the called party sees the call and directly influences answer rates. Confirm which types are available within MCC's offering when discussing routes.
| Area | CLI Route | NCLI Route |
|---|---|---|
| Caller ID presentation | Originating number presented to the called party | No caller ID delivered to the called party |
| Typical answer rates | Generally higher — recipient can see who is calling | Generally lower — recipient sees no number or unknown |
| Common use cases | Business outbound calls, service calls, enterprise voice traffic where caller identity matters | Traffic types where CLI presentation is not required or not available for a given destination |
| Route considerations | Route quality and CLI delivery consistency are standard evaluation criteria | Route quality (ASR, PDD) is the primary evaluation criterion |
| Best suited for | Traffic where the called party recognising the caller matters to answer rates | Traffic where the originating number is not the primary factor in answer behaviour |
CLI and NCLI availability depends on destination and route type. Confirm availability with MCC for your specific destination mix and traffic profile. See also: CLI vs NCLI routes explained.
Contact MCC with your destination mix, expected call volumes, and whether you need CLI or NCLI routes. This shapes the initial rate discussion.
MCC will provide route availability and rates for your destination mix. There is no public rate card — pricing is discussed based on volume and route type.
Interconnection method, SIP configuration requirements, and commercial terms are confirmed directly with the MCC team based on your platform setup.
Before moving production traffic, test the interconnection and verify route quality metrics (ASR, PDD) against your requirements for the destinations you need.
Once testing confirms acceptable route quality and connectivity stability, production traffic moves to the agreed routes. Ongoing support and route monitoring continue through MCC.
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 guideHow the wholesale market works in practice: reading a rate deck, direct versus transit routes, the quality numbers buyers compare, and where providers make margin.
Read the guideThere is no public rate card. Send your destination mix and expected volumes and the team will come back with rates for those destinations.
Reselling or wholesaling MCC services to your own customers? Partner with MCC.