# Best Call Center Infrastructure (CCI) Software - Page 23

*By [Jeffrey Lin](https://research.g2.com/insights/author/jeffrey-lin)*


Call center infrastructure (CCI), also known as contact center infrastructure, provides solutions required to establish and operate a call center. CCI software helps businesses create an efficient call or contact center to help them stay connected with their customers. CCI is most commonly used by customer-facing teams to manage inbound and outbound communications, but it also includes features for managing operations or back-office tasks like workflow management, employee monitoring, and measuring productivity.

While historically CCI was designed to be deployed on premises, emerging technologies in cloud infrastructure have allowed for the design and deployment of cloud call centers. The products in this category offer a full-fledged cloud-hosted infrastructure solution with features like call routing, call recording and monitoring, automatic call distribution (ACD), and interactive voice response (IVR). Local area network (LAN) and [VoIP providers](https://www.g2.com/categories/voip) are examples of some software providers that also offer solutions to establish infrastructure for network connectivity of contact centers. Depending on the provider and the membership plan, a variety of other features may be available in a CCI package. CCI products frequently integrate with [CRM software](https://www.g2.com/categories/crm).

To qualify for inclusion in the Call Center Infrastructure (CCI) category, a product must:

- Distribute incoming calls or manage phone number assignment for outbound centers
- Manage and store data related to calls, customers, and agents
- Provide a comprehensive infrastructure solution which includes call management, placement, routing, recording, and analytics
- Enable managers to track and monitor calls
- Include the following features: automatic call distributor, universal communications, interactive voice response, universal queue management, and computer telephony integrations (CTI)





## Top Call Center Infrastructure (CCI) Software at a Glance
| # | Product | Rating | Best For | What Users Say |
|---|---------|--------|----------|----------------|
| 1 | [RingEX](https://www.g2.com/products/ringex/reviews) | 4.2/5.0 (1,364 reviews) | Unified call-queue routing with AI transcription | "[Seamless Communication, Unifies Our Workflow](https://www.g2.com/survey_responses/ringex-review-12983792)" |
| 2 | [Nextiva](https://www.g2.com/products/nextiva/reviews) | 4.5/5.0 (3,541 reviews) | Multi-site call routing with unified UCaaS infrastructure | "[User-Friendly Phone Service Provider For Small Business](https://www.g2.com/survey_responses/nextiva-review-12747800)" |
| 3 | [Five9 Intelligent Cloud Contact Center Platform](https://www.g2.com/products/five9-intelligent-cloud-contact-center-platform/reviews) | 4.1/5.0 (597 reviews) | Omnichannel contact center routing with Salesforce-native CTI | "[Five9 a great way to communicate especially when working from home!](https://www.g2.com/survey_responses/five9-intelligent-cloud-contact-center-platform-review-5038340)" |
| 4 | [Aircall](https://www.g2.com/products/aircall/reviews) | 4.4/5.0 (1,570 reviews) | Cloud call routing with CRM-integrated recording | "[Aircall: Powerful Cloud Phone System with Excellent Support](https://www.g2.com/survey_responses/aircall-review-13051826)" |
| 5 | [CloudTalk](https://www.g2.com/products/cloudtalk/reviews) | 4.4/5.0 (1,799 reviews) | Cloud call routing with CRM-integrated analytics | "[CloudTalk’s Analytics, Seamless Pipedrive Integration, and Smart Local Area Code Dialing](https://www.g2.com/survey_responses/cloudtalk-review-12856744)" |
| 6 | [Genesys Cloud CX](https://www.g2.com/products/genesys-cloud-cx/reviews) | 4.4/5.0 (1,463 reviews) | Omnichannel contact center routing with API-first customization | "[Effortless Setup, Powerful Integrations](https://www.g2.com/survey_responses/genesys-cloud-cx-review-12997137)" |
| 7 | [Talkdesk](https://www.g2.com/products/talkdesk/reviews) | 4.4/5.0 (2,429 reviews) | AI-assisted contact center routing with CRM integration | "[Built a whole healthcare call flow in it - took time but it actually works](https://www.g2.com/survey_responses/talkdesk-review-12800159)" |
| 8 | [Webex Calling](https://www.g2.com/products/webex-calling/reviews) | 4.5/5.0 (614 reviews) | Cisco-native cloud PBX with call-center routing | "[Webex Calling Makes Switching Between Calls Effortless](https://www.g2.com/survey_responses/webex-calling-review-12721066)" |
| 9 | [JustCall](https://www.g2.com/products/saas-labs-justcall/reviews) | 4.3/5.0 (2,356 reviews) | CRM-integrated cloud calling with AI coaching | "[Efficient Communication Hub for Global Outreach and CRM Syncing](https://www.g2.com/survey_responses/justcall-review-12696120)" |
| 10 | [Close](https://www.g2.com/products/close/reviews) | 4.7/5.0 (2,029 reviews) | High-volume outbound calling with built-in CRM | "[Streamlined Sales Tracking with Close](https://www.g2.com/survey_responses/close-review-9087574)" |

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## What Are the Most Common Questions About Call Center Infrastructure (CCI) Software?
*AI-generated · Last updated: May 26, 2026*
### Which is the best call center infrastructure platform for enterprises?
Based on G2 reviews, [RingEX](https://www.g2.com/products/ringex) stands out as the strongest enterprise-oriented option in this recent review set because verified users repeatedly mention centralized administration, support for large user bases, international calling, call queues, reporting, and integrations with systems like Salesforce, ticketing tools, CRMs, and ERPs. According to verified users, it is especially valued for reliability, user management, remote work support, and keeping voice, messaging, and related workflows in one place. G2 reviewers mention that it helps enterprises replace older phone systems, manage multiple teams, and simplify onboarding, though some users also note that advanced configuration and certain reporting needs can require extra effort.


### Which call center infrastructure has the lowest downtime?
Based on G2 reviews, buyers looking for low downtime consistently mention reliability, stable call quality, and dependable performance across a few products in this category. According to verified users, RingEX is frequently described as stable with little to no downtime, while Nextiva reviewers also highlight reliable service and consistent phone performance. G2 reviewers mention that Genesys Cloud CX is valued for cloud stability and high availability, especially for teams replacing older on-premise environments. Across these reviews, the clearest pattern is that buyers associate low downtime with products that support remote work well, keep call quality consistent, and reduce operational disruptions during busy periods.


### Which CCI software is best for cloud-based deployments?
Based on G2 reviews, [RingEX](https://www.g2.com/products/ringex) is the strongest fit for cloud-based deployments in this dataset because reviewers repeatedly describe easy setup, remote access, and replacing older physical phone systems with a centralized cloud environment. According to verified users, teams value being able to manage users, handle calls from desktop or mobile devices, and support distributed work without heavy hardware requirements. G2 reviewers mention that cloud access helps with onboarding, remote operations, unified communications, and integrations with business systems like Salesforce and ticketing tools. Reviews also note that the platform is approachable for everyday administration, although some advanced setup or reporting needs can still require extra attention.


### What top-rated platforms for real-time call analytics?
Based on G2 reviews, real-time and operational analytics come up most often around platforms that help managers monitor queues, workloads, and performance without switching systems. According to verified users, RingEX is used to review call metrics, dashboards, and queue activity, while Five9 is repeatedly praised for deep reporting, queue visibility, and operational insight. G2 reviewers also mention Aircall for analytics and productivity tracking, especially in teams handling high call volumes and quality review. The overall review pattern suggests buyers should prioritize platforms that combine reporting with call monitoring, queue management, and easy access to performance trends, especially if supervisors need to make adjustments during the workday rather than after the fact.

**Here are some of the top-rated products on G2:**

- [RingEX](https://www.g2.com/products/ringex) – used for dashboards, queue tracking, call metrics, and balancing team activity
- [Five9 Intelligent Cloud Contact Center Platform](https://www.g2.com/products/five9-intelligent-cloud-contact-center-platform) – valued for in-depth reporting, queue visibility, and monitoring agent productivity
- [Aircall](https://www.g2.com/products/aircall) – helpful for analytics, QA review, and tracking inbound and outbound team performance


### What top CCI solutions for regulatory compliance?
Based on G2 reviews, compliance-related buyers tend to focus on platforms that support call recording, centralized administration, secure workflows, and traceable communication history. According to verified users, RingEX is commonly used for recording, logging, and keeping communications organized across teams, while Genesys Cloud CX is often associated with structured reporting, centralized channel management, and operational control. G2 reviewers mention Five9 for quality monitoring, call recording, and oversight tools that help supervisors review interactions and support consistent processes. In this review set, the strongest compliance signal comes from products that make it easier to document calls, monitor performance, and keep customer interactions visible across teams and channels.

**Here are some of the top-rated products on G2:**

- [RingEX](https://www.g2.com/products/ringex) – used for call recording, communication logging, and centralized oversight across teams
- [Genesys Cloud CX](https://www.g2.com/products/genesys-cloud-cx) – supports centralized reporting, multichannel management, and structured operational visibility
- [Five9 Intelligent Cloud Contact Center Platform](https://www.g2.com/products/five9-intelligent-cloud-contact-center-platform) – valued for call recording, quality monitoring, and supervisor review workflows


### What top tools for managing inbound and outbound call operations?
Based on G2 reviews, buyers managing both inbound and outbound operations look for platforms with routing, queue controls, reporting, and tools that help agents move efficiently between conversations. According to verified users, RingEX supports queues, transfers, analytics, and broad communication workflows, while Five9 is frequently mentioned for outbound dialing, IVR, routing, and agent management. G2 reviewers also describe Nextiva as helpful for centralized communication, call flow handling, and support for inside sales and answering workflows. Across these reviews, the strongest products for mixed inbound and outbound environments are the ones that combine visibility for supervisors with practical day-to-day tools for agents handling changing call volumes.

**Here are some of the top-rated products on G2:**

- [RingEX](https://www.g2.com/products/ringex) – useful for call queues, transfers, analytics, and handling multi-team inbound and outbound workflows
- [Five9 Intelligent Cloud Contact Center Platform](https://www.g2.com/products/five9-intelligent-cloud-contact-center-platform) – strong for outbound dialing, IVR design, routing, and agent management
- [Nextiva](https://www.g2.com/products/nextiva) – supports call flow management, centralized communication, and inside sales operations


### What best tools for scaling call center operations?
Based on G2 reviews, scalable call center operations are usually linked to products that support higher call volume, easier user administration, and centralized reporting as teams expand. According to verified users, RingEX is repeatedly used to manage larger teams, multiple queues, and remote communication from one system. G2 reviewers also mention Genesys Cloud CX for supporting multichannel growth and reducing dependence on older infrastructure, while Aircall is valued by some teams for scaling inbound and outbound activity with analytics and easier onboarding. The review data suggests the best scaling tools are the ones that help teams add users, maintain visibility, and standardize communications without creating extra system complexity for managers.

**Here are some of the top-rated products on G2:**

- [RingEX](https://www.g2.com/products/ringex) – supports growing teams with centralized admin, multiple queues, and remote communication workflows
- [Genesys Cloud CX](https://www.g2.com/products/genesys-cloud-cx) – helps consolidate channels and scale cloud operations with reporting and routing tools
- [Aircall](https://www.g2.com/products/aircall) – useful for scaling inbound and outbound call activity with analytics and team coordination


### What best CCI tools for remote call center teams?
Based on G2 reviews, remote teams consistently value platforms that let agents answer calls from desktop or mobile devices, keep logs centralized, and reduce dependence on office hardware. According to verified users, RingEX is frequently used to support remote work with app-based calling, messaging, and easy user setup. Nextiva reviewers also highlight working from anywhere, broad device support, and keeping communications in one platform. G2 reviewers mention Genesys Cloud CX for enabling teams to work across locations while maintaining access to voice, chat, and operational visibility. The clearest trend is that remote teams benefit most from systems that combine reliability, simple setup, and consistent access across multiple devices.

**Here are some of the top-rated products on G2:**

- [RingEX](https://www.g2.com/products/ringex) – supports desktop and mobile calling, remote user setup, and centralized communication history
- [Nextiva](https://www.g2.com/products/nextiva) – helps distributed teams work remotely with broad device compatibility and organized communication
- [Genesys Cloud CX](https://www.g2.com/products/genesys-cloud-cx) – enables remote support teams to manage multichannel interactions from a cloud environment


### What best CCI solutions for integrating voice, chat, and email support?
Based on G2 reviews, the best solutions for integrating voice, chat, and email support are the ones reviewers describe as keeping multiple communication channels in one workspace. According to verified users, Genesys Cloud CX is often praised for handling voice, chat, email, and messaging from a unified interface, while Nextiva is recognized for combining calls, chat, text, and conversation history in one platform. G2 reviewers also mention Talkdesk for unifying channels and giving agents a single place to manage interactions. In this review set, the strongest multichannel tools are the ones that reduce switching between systems, preserve context, and help teams respond more consistently across support channels.

**Here are some of the top-rated products on G2:**

- [Genesys Cloud CX](https://www.g2.com/products/genesys-cloud-cx) – brings voice, chat, email, and messaging into one interface for multichannel support
- [Nextiva](https://www.g2.com/products/nextiva) – centralizes calls, chat, text, and conversation history for streamlined customer communication
- [Talkdesk](https://www.g2.com/products/talkdesk) – unifies voice, chat, email, and related workflows to reduce context switching for agents


### Which call center platform offers AI-driven call routing?
Based on G2 reviews, [RingEX](https://www.g2.com/products/ringex) is a strong answer for buyers looking for AI-driven call routing because reviewers mention AI receptionist capabilities, queue-based routing, and tools that help direct callers to the right user or team. According to verified users, the platform supports remote and office teams while combining voice, messaging, and administrative controls in one environment. G2 reviewers mention that AI features like summaries, receptionist workflows, and call handling improve efficiency and reduce manual effort for teams managing high call volumes. Reviews also note strengths around setup, user management, and integrations, though some users would still like deeper reporting or more refined advanced features.




## How Many Call Center Infrastructure (CCI) Software Products Does G2 Track?
**Total Products under this Category:** 364

### Category Stats (Jul 2026)
- **Average Rating**: 4.42/5 The average rating of products in this category, based on all submitted ratings
- **Top Trending Product**: VirtualPBX (+0.74%) - Among all products in this category, VirtualPBX recorded the largest rating increase compared to last month
*Last updated: July 06, 2026*


## How Does G2 Rank Call Center Infrastructure (CCI) Software Products?

**Why You Can Trust G2's Software Rankings:**

- 30 Analysts and Data Experts
- 39,800+ Authentic Reviews
- 364+ Products
- Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.


## Which Call Center Infrastructure (CCI) Software Is Best for Your Use Case?

- **Leader:** [RingEX](https://www.g2.com/products/ringex/reviews)
- **Highest Performer:** [Voiso](https://www.g2.com/products/voiso/reviews)
- **Easiest to Use:** [DialedIn](https://www.g2.com/products/dialedin/reviews)
- **Top Trending:** [Maqsam](https://www.g2.com/products/maqsam/reviews)
- **Best Free Software:** [Nextiva](https://www.g2.com/products/nextiva/reviews)


---

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## What Is Call Center Infrastructure (CCI) Software?

[Call & Contact Center Software](https://www.g2.com/categories/call-contact-center)

## What Software Categories Are Similar to Call Center Infrastructure (CCI) Software?

- [Contact Center Software](https://www.g2.com/categories/contact-center)
- [Contact Center Workforce Software](https://www.g2.com/categories/contact-center-workforce)
- [VoIP Providers](https://www.g2.com/categories/voip-providers)
- [Outbound Call Tracking Software](https://www.g2.com/categories/outbound-call-tracking)
- [Auto Dialer Software](https://www.g2.com/categories/auto-dialer)
- [Speech Analytics Software](https://www.g2.com/categories/speech-analytics)
- [Contact Center Quality Assurance Software](https://www.g2.com/categories/contact-center-quality-assurance)