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    Overview
    ProductRatingMost Used ByProduct SummaryStarting Price

    Cisco Duo

    Score9.4 out of 10
    N/ACisco Duo is a two-factor authentication system (2FA), acquired by Cisco in October 2018. It provides single sign-on (SSO) and endpoint visibility, as well as access controls and policy controlled adaptive authentication.

    $3

    per month per user

    Google Voice

    Score8 out of 10
    N/AGoogle Voice is a free IP telephony service that provides users with one phone number that can be forwarded to multiple phones or devices. It includes features such as call forwarding, voicemail translation, text messaging, and voice calls. Fees may apply for international calling.

    $10

    per month

    Pricing
    Cisco DuoGoogle Voice
    Editions & Modules
    Duo Essentials
    $3
    per month per user
    Duo Advantage
    $6
    per month per user
    Duo Premier
    $9
    per month per user
    Starter
    $10
    per user/per month
    Standard
    $20
    per user/per month
    Premier
    $30
    per user/per month
    Offerings
    Pricing Offerings
    Cisco DuoGoogle Voice
    Free Trial
    YesNo
    Free/Freemium Version
    NoNo
    Premium Consulting/Integration Services
    NoNo
    Entry-level Setup FeeNo setup feeNo setup fee
    Additional Details——
    More Pricing Information
    Features
    Cisco DuoGoogle Voice
    Cloud PBX
    Comparison of Cloud PBX features of Cisco Duo and Google Voice
    Feature
    Cisco Duo
    -
    Ratings
    Google Voice
    5.3
    53 Ratings
    40% below category average
    Hosted PBX00 Ratings6.025 Ratings
    Multi-level Interactive Voice Response (IVR)00 Ratings3.027 Ratings
    User templates00 Ratings1.419 Ratings
    Call reports00 Ratings7.046 Ratings
    Directory of employee names00 Ratings9.027 Ratings
    Call Management
    Comparison of Call Management features of Cisco Duo and Google Voice
    Feature
    Cisco Duo
    -
    Ratings
    Google Voice
    8.4
    67 Ratings
    2% above category average
    Answering rules00 Ratings8.546 Ratings
    Call recording00 Ratings8.152 Ratings
    Call park00 Ratings6.422 Ratings
    Call screening00 Ratings10.060 Ratings
    Message alerts00 Ratings9.065 Ratings
    VoIP system collaboration
    Comparison of VoIP system collaboration features of Cisco Duo and Google Voice
    Feature
    Cisco Duo
    -
    Ratings
    Google Voice
    7.5
    44 Ratings
    6% below category average
    Video conferencing00 Ratings6.022 Ratings
    Audio conferencing00 Ratings8.039 Ratings
    Video screen sharing00 Ratings8.014 Ratings
    Instant messaging00 Ratings8.027 Ratings
    Mobile apps
    Comparison of Mobile apps features of Cisco Duo and Google Voice
    Feature
    Cisco Duo
    -
    Ratings
    Google Voice
    7.2
    63 Ratings
    9% below category average
    Mobile app for iOS00 Ratings6.945 Ratings
    Mobile app for Android00 Ratings7.551 Ratings
    Best Alternatives
    Cisco DuoGoogle Voice
    Small Businesses
    WatchGuard AuthPoint
    Score9 out of 10
    CallFire
    Score9.7 out of 10
    Medium-sized Companies
    WatchGuard AuthPoint
    Score9 out of 10
    Fuze
    Score8.2 out of 10
    Enterprises
    Symantec VIP
    Score9 out of 10
    Cisco Unified Communications Manager (Call Manager)
    Score8.3 out of 10
    All AlternativesView all alternativesView all alternatives
    User Ratings
    Cisco DuoGoogle Voice
    Likelihood to Recommend
    9.4
    (196 ratings)
    7.5
    (73 ratings)
    Likelihood to Renew
    9.9
    (9 ratings)
    9.3
    (7 ratings)
    Usability
    10.0
    (76 ratings)
    8.0
    (11 ratings)
    Availability
    9.9
    (8 ratings)
    -
    (0 ratings)
    Performance
    9.8
    (3 ratings)
    -
    (0 ratings)
    Support Rating
    9.9
    (89 ratings)
    7.0
    (35 ratings)
    Online Training
    10.0
    (1 ratings)
    -
    (0 ratings)
    Implementation Rating
    9.9
    (9 ratings)
    10.0
    (2 ratings)
    Configurability
    10.0
    (2 ratings)
    -
    (0 ratings)
    Contract Terms and Pricing Model
    -
    (0 ratings)
    7.0
    (1 ratings)
    Ease of integration
    9.9
    (8 ratings)
    -
    (0 ratings)
    Product Scalability
    9.8
    (3 ratings)
    -
    (0 ratings)
    Professional Services
    -
    (0 ratings)
    7.0
    (1 ratings)
    Vendor post-sale
    10.0
    (2 ratings)
    -
    (0 ratings)
    Vendor pre-sale
    10.0
    (2 ratings)
    -
    (0 ratings)
    User Testimonials
    Cisco DuoGoogle Voice
    Likelihood to Recommend
    Cisco
    For secure access to apps and business data, I recommend Cisco Duo. It offers SSO, MFA, and Passwordless access, ensuring teams can securely access business data. It is easy to customize and comes with top-tier security features. It protects business data, apps, and users.
    Incentivized
    Read full review
    Google
    I do think Google Voice works well for organizations that do not have a support team meant to provide regular telephone support, and instead do so on an ad hoc basis. I would not recommend it for high-volume call activities, such as SDR motions.
    Incentivized
    Read full review
    Pros
    Cisco
    • We use Cisco Duo with different type of device and application, but we never face any difficulties to integrate Cisco Duo with any of them.
    • We integrated Cisco Duo with some of our active directory and some of the OS are quite old but Cisco Duo works totally fine with them.
    • The end user application is very easy to use. We never had any complain from non tech team members of having trouble of using Cisco Duo.
    • There are several authentication methods available rather than passcode. I personally like the push notification which is always on time and quite fast.
    Incentivized
    Read full review
    Google
    • Google Voice has been great for setting up additional phone lines and numbers.
    • The voicemail inbox is a great feature and you can see when messages come in online and listen to the messages from your computer.
    • Google Voice allows us to have multiple phone numbers and lines for specific business purposes.
    Incentivized
    Read full review
    Cons
    Cisco
    • Should have device to device connection ability whereas internet is not met.
    • Changes of device can be sorted and easily made using a second email address or any other identification method.
    • Troubleshooting should be easy to sort out. One time, a Duo admin deleted the authentication group, and some employees were not getting push notifications. It was very hard to find out the cause. Duo should have some troubleshooting finder.
    • Sometimes push notifications are delayed, and the code does not work. At that time, we need to enroll the device again. Not sure why it happens. Duo should give reasons for the error.
    Read full review
    Google
    • There has not been much innovation since the initial release.
    • It doesn't handle SMS well.
    • It does not natively integrate with CRM without legacy complication
    • It is not supported by Google as it once was
    • Call Recording is non-existent
    • Call-Tree or Virtual Auto-Attendant needs are not available
    Incentivized
    Read full review
    Likelihood to Renew
    Cisco
    There are a lot of competing solutions on the market; however, Duo "just works", and there is little to no learning curve for the new members to be acclimated to it. As long as that continues I see it as the preferred option moving forward
    Incentivized
    Read full review
    Google
    Google Voice has been invaluable for us in our effort to provide exceptional customer service. With Google Voice, we have been able to increase our customer interactions while reducing the wait time to reach a live person on our team. We couldn't be more pleased with the way things have worked out since implementing Google Voice.
    Incentivized
    Read full review
    Usability
    Cisco
    La interfaz es intuitiva y fácil de navegar, lo que permite a los usuarios administrar sus dispositivos y acceder a las políticas sin problemas. La integración con las aplicaciones SSO y SaaS facilita aún más el proceso de acceso, mejorando la experiencia del usuario.
    Incentivized
    Read full review
    Google
    I think it works really well in the arena it operates in, but not so well in areas where an enterprise system would be more appropriate. It's great for quick solutions that just work, but not so much for more complex call management tasks.
    Incentivized
    Read full review
    Reliability and Availability
    Cisco
    In the last 5+ years we've been using Duo, there may have been 1 outage that impacted us. We do receive periodic notifications of issues but, for the most part, they impact carriers or functionality that we either don't use, or do not care about.
    Read full review
    Google
    No answers on this topic
    Performance
    Cisco
    We do not see any degradation of performance of the protected applications. There are occasional lags in receiving the push but no show stooppers.
    Read full review
    Google
    No answers on this topic
    Support Rating
    Cisco
    I have not needed direct support for Cisco Secure Access by Duo as I have not had a problem with it, but I have full confidence that the support is outstanding. It is now a core component of the corporate technology stack - a problem would mean a serious degradation in the ability of the company to function.
    Incentivized
    Read full review
    Google
    They do not offer support unless you have the Business account for Google Voice under G Suite. This is tough, because Google doesn't really have a customer support team for this service, so when it gets shut down for a few hours, we have no choice but to wait it out. But this doesn't happen that often, which is great.
    Incentivized
    Read full review
    In-Person Training
    Cisco
    There was no in person training but checking the box was the only way I could complete all of the questions.
    Read full review
    Google
    No answers on this topic
    Online Training
    Cisco
    This was not organized training but the videos that Duo provides to teach you how to install a particular integration are top notch.
    Read full review
    Google
    No answers on this topic
    Implementation Rating
    Cisco
    Documentation could have been better. I had to piece together different KB/admin guides to make certain things work and I also had to use third-party guides to get bits of information that were missing from Cisco Duo documentation. Support was also engaged multiple times to figure out an issue and after some back and forth it was usually determined that the information I needed was hidden somewhere else and had no direct correlation with the document that was linked from the platform.
    Incentivized
    Read full review
    Google
    It is a pretty seamless program to transfer to, even for people who either have little experience with these programs or people who were stuck on Skype
    Incentivized
    Read full review
    Alternatives Considered
    Cisco
    Ultimately we ended up going with Cisco Duo because we are a Cisco shop. All of our networking infrastructure, our phones, our wireless environment is Cisco based. It made logical sense to stay with a product that we already have a line of support with. With a smaller support / tech group we depend on outside Cisco support. That support is already here for us, so we stayed with a Cisco product.
    Incentivized
    Read full review
    Google
    The integrations of Google Voice with all our devices are flawless, Android, iOS, Windows, Linux and Mac. Also, the call performance is far superior on wifi as well as on mobile data. With Skype, we had several problems with personal accounts, performance issues, and in general, it felt awkward to use it.
    Incentivized
    Read full review
    Contract Terms and Pricing Model
    Cisco
    No answers on this topic
    Google
    Google Voice should be also be use to those who have difficulty in speaking English. So the contract term will need to be a little strict as Google Voice is used in navigations as the part of GPRS navigation is personal. The private data need to be in control much more securely and safely.
    Read full review
    Scalability
    Cisco
    So far, the only limits we've encountered were tied to our imagination. Duo's strong list of supported integrations is amazing.
    Read full review
    Google
    No answers on this topic
    Professional Services
    Cisco
    No answers on this topic
    Google
    It help to connect with the products that we use as a part. We need to get in touch with our professional world. It is like a tool that helps us to get in touch with everything from A to Z in our professional careers. So we need to be in touch with everything as linearly as the jpb can be done.
    Read full review
    Return on Investment
    Cisco
    • Cisco Duo has saved us from automated attacks on VPN. We had an instance is 2024 where our VPN was being brute force attacked, and we had several users' weak passwords compromised; however the VPN security groups, and the MFA kept the attacks from gaining access. We've since replaced our firewall with capabilities for limitations on country access for VPN, and beefed up our password complexity settings,
    Incentivized
    Read full review
    Google
    • Cost for Google Voice is stellar, starting at $10/mo per user.
    • While it doesn't offer a new Audio/Video conferencing solution it does integrate with GSuite so it makes use of Google Calendar and Hangouts/ Google Meet.
    • Gets the employee's to use their company phone numbers more as texting is easy and deployment is simple.
    • The cell phone app is reliable and easy to deploy.
    Incentivized
    Read full review
    ScreenShots