Microsoft teams dns requirements

Setting up hybrid connectivity is the first step in moving your on-premises environment to the cloud. If you have on-premises Skype for Business users that are also using Teams side by sidethose users do not have the ability to interoperate with Skype for Business users from their Teams client, nor communicate with users in federated organizations, from their Teams client.

To gain this functionality in Teams, these users must be moved from Skype for Business on-premises to the cloud, which requires configuring Skype for Business hybrid mode. Setting up hybrid connectivity and moving all users to the cloud is also required before you decommission your on-premises Skype for Business deployment.

With hybrid connectivity set up, you can choose to move your users to the cloud based on your schedule and business need. With Direct Routing, you can leverage your on-premises voice infrastructure while you move to the cloud and after your migration is complete. This topic describes the infrastructure and system requirements you'll need to configure hybrid connectivity between your existing on-premises Skype for Business Server deployment and Teams or Skype for Business Online.

After you have read this topic and are ready to configure hybrid connectivity, see Configure hybrid connectivity between Skype for Business Server and Office The configuration topics provide step-by-step guidance for setting up hybrid connectivity between your on-premises deployment and Teams or Skype for Business Online. With hybrid connectivity set up between an on-premises deployment of Skype for Business Server and Teams or Skype for Business Online, you can have some users homed on-premises and some users homed online.

This type of configuration relies on shared SIP address space functionality, and is sometimes referred to as "split domain"--meaning users of a domain, such as contoso.

Before a user can be moved online, the user must be assigned a Skype for Business Online Plan 2 license. If the user will be using Teams, the user must also be assigned a Teams license and the Skype for Business license must remain enabled. If your users want to take advantage of additional online features, such as Audio Conferencing or Phone System, you need to assign them the appropriate license in Office To implement hybrid connectivity between your on-premises environment and Office communication services, you need to meet the following infrastructure requirements:.

After you configure hybrid connectivity, you can move users to Teams or Skype for Business Online. For more information, see Move users from on-premises to Teams and Move users from on premises to Skype for Business Online. To configure your deployment for hybrid with Teams or Skype for Business Onlineyou need to have one of the following supported topologies:.

If hybrid voice is desired in any topologyboth the edge server that is designated as the Federation Edge as well as the pool associated with SIP federation must be running Skype for Business or later.

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Users can remain on a Lync Pool if one exists. The following topologies that include Lync Server are supported with Skype for Business Online for instant messaging and meetings. Topologies that include Lync Server are not supported for hybrid voice nor Teams.

The federation Edge Server and next hop server from the federation Edge Server must be running Lync Server with the latest cumulative updates. The Skype for Business Server or Lync Server Administrative Tools must be installed on at least one server or management workstation.

Resource forest topology. In this kind of topology, there is one forest that hosts Skype for Business Server the resource forestand there are one or more additional forests that host account identities, which access the Skype for Business Server in the resource forest.This article is part of the Technical Readiness stage of your upgrade journey, an activity you complete in parallel with the User Readiness stage. Before proceeding, confirm that you've completed these activities from previous stages:.

Watch the following session to learn how to Teams leverages your network and how to best plan for optimal network connectivity: Teams Network Planning. If you're deploying audio, video, or meetings, you can take some additional steps to optimize your network for that functionality.

microsoft teams dns requirements

Teams uses audio and video technology codecs that can adapt to—and therefore perform better under—most network conditions. To ensure optimal and consistent performance, you should prepare your network for Teams. Before we look at the steps to be taken, it's important to understand what can affect the performance of Teams and thereby user happiness and satisfaction. Three major risk areas can affect how users perceive network quality:.

The steps described below will help you determine whether your deployment might be affected by any of these factors and will help you move toward a resolution.

Failing to prepare your network will likely lead to dissatisfied users and costly, ad-hoc fixes. By preparing your network—and your organization—for Teams, you can dramatically increase your chance of success.

Microsoft Teams gives you the best audio, video and content sharing experience regardless of your network conditions. With variable codecs, media can be negotiated in limited bandwidth environments with minimal impact.

But where bandwidth is not a concern, experiences can be optimized for quality, including up to p video resolution, up to 30fps for video and 15fps for content, and high-fidelity audio. This table describes how Teams uses bandwidth. Teams is always conservative on bandwidth utilization and can deliver HD video quality in under 1.

When more bandwidth is available, quality and usage will increase to deliver the best experience. Many networks were designed to use a hub and spoke topology. In this topology, internet traffic typically traverses the WAN to a central datacenter before it emerges egresses to the internet. Often, this is done to centralize network security devices with the goal of reducing overall cost.

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Back-hauling traffic across the WAN increases latency and has a negative impact on quality and the user experience. Because Microsoft Teams runs on Microsoft's large global network, there's often a network peering location close to the user. A user will most likely get better performance by egressing out of a local internet point close to their location and on to our voice-optimized network as soon as possible.

For some workloads, DNS requests are used to send traffic to the nearest front-end server. In such cases, it's important that when using a local egress point, it's paired with local DNS resolution. Optimizing the network path to Microsoft's global network will improve performance and ultimately provide the best experience for users. For more detail, see the blog post Getting the best connectivity and performance in Office To get an optimal experience using real-time media within Microsoft Teams, you must meet the networking requirements for Office To test both network segments, you can use the Network Assessment Tool.

The tool includes limited documentation, but a deeper documentation around the usage of the tool can be found here: Network Readiness Assessment.Check the Domains FAQ if you don't find what you're looking for. Check our list of host-specific instructions to find your host and follow the steps to add all the records you need. If you don't know the DNS hosting provider or domain registrar for your domain, see Find your domain registrar or DNS hosting provider.

microsoft teams dns requirements

To set up the records yourself, these are the records to add. Note that your verification record and MX record are unique to your domain. To set them up, you'll need to get and use a specific "token" value for your domain. The steps below explain how to do that.

The exact name of the boxes or fields you type or paste the information into, to create each type of DNS record, are different for each DNS host. Your DNS host may have Help on their website to assist you in mapping the instructions we show here to the exact fields on their website. For a fast, automated process setting up with Officewe recommend that you transfer your domain to GoDaddy.

Typically it takes just a few minutes for DNS changes to take effect. However, it can occasionally take longer for a change you've made to update across the Internet's DNS system. If you're having trouble with mail flow or other issues after adding DNS records, see Find and fix issues after changing your domain name or DNS records.

You will create only one or the other of these records. Before you use your domain with Officewe have to make sure that you own it. Your ability to log in to your account at your domain registrar and create the DNS record proves to Office that you own the domain.

microsoft teams dns requirements

This record is used only to verify that you own your domain; it doesn't affect anything else. You can delete it later, if you like. Find the area on your DNS hosting provider's website where you can create a new record. Now that you've added the record at your domain registrar's site, you'll go back to Office and request Office to look for the record.Just need video calling for personal use?

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External Domain Name System records for Office 365

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Send now. Your message is being sent. Your message has been sent, please check your device shortly. Your message has been sent, please check your email shortly.We've updated our SPF records guidance at the end of this article.

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The important thing to remember is that you can only have a single SPF record for your domain. You can have multiple MX records; however, that can cause problems for mail delivery. Having a single MX record that directs email to one mail system removes many potential problems.

The sections below are organized by service in Office Every Office customer needs to add two records to their external DNS. The first CNAME record ensures that Office can direct workstations to authenticate with the appropriate identity platform. The second required record is to prove you own your domain name. Email in Office requires several different records. The Autodiscover record allows client computers to automatically find Exchange and configure the client properly.

The MX record tells other mail systems where to send email for your domain. Do you just want to switch a few email addresses to Office ?

You can Pilot Office with a few email addresses on your custom domain. The TXT record for SPF is used by recipient email systems to validate that the server sending your email is one that you approve. This helps prevent problems like email spoofing and phishing. There are specific steps to take when you use Office URLs and IP address ranges to make sure your network is configured correctly. These DNS records also apply to Teams, especially in a hybrid Teams and Skype for Business Online scenario, where certain federation issues could arise.

SPF is designed to help prevent spoofing, but there are spoofing techniques that SPF cannot protect against. SPF records are TXT records that help to prevent other people from using your domain to send spam or other malicious email.

Sender policy framework SPF records work by identifying the servers that are authorized to send email from your domain. That single record can have a few different inclusions but the total DNS lookups that result can't be more than 10 this helps prevent denial of service attacks. See the table and other examples below to help you create or update the right SPF record values for your environment. All SPF records contain three parts: the declaration that it is an SPF record, the domains, and IP addresses that should be sending email, and an enforcement rule.

You need all three in a valid SPF record. An email system that receives an email from your domain looks at the SPF record, and if the email server that sent the message was an Office server, the message is accepted.

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If the server that sent the message was your old mail system or a malicious system on the Internet, for example, the SPF check might fail and the message wouldn't be delivered. Checks like this help to prevent spoofing and phishing messages. For scenarios where you're not just using Exchange Online email for Office for example, when you use email originating from SharePoint Online as welluse the following table to determine what to include in the value of the record.

If you have a complicated scenario that includes, for example, edge email servers for managing email traffic across your firewall, you'll have a more detailed SPF record to set up.If you've already optimized your network for Officeyou're probably ready for Microsoft Teams.

In any case - and especially if you're rolling out Teams quickly as your first Office workload to support remote workers - check the following before you begin your Teams rollout:. Do all your locations have internet access so they can connect to Office ? At a minimum, in addition to normal web traffic, make sure you've opened the following, for all locations, for media in Teams:.

Once you've verified that you meet these network requirements, you may be ready to Roll out Teams. If you're a large multinational enterprise, or if you know you've got some network limitations, read on to learn how to assess and optimize your network for Teams.

CQD can help you optimize your network by keeping a close eye on quality, reliability, and the user experience. CQD looks at aggregate telemetry for an entire organization where overall patterns can become apparent, which lets you identify problems and plan remediation. Additionally, CQD provides rich metrics reports that provide insight into overall quality, reliability, and user experience. You'll use call analytics to investigate call and meeting problems for an individual user.

DNS requirements for Skype for Business Server

The following tasks are optional and aren't required for rolling out Teams, especially if you're a small business and you've already rolled out Office Use this guidance to optimize your network and Teams performance or if you know you've got some network limitations. For an in-depth discussion of network optimization, including guidance for identifying and fixing network impairments, read Office Network Connectivity Principles. For help assessing your network, including bandwidth calculations and network requirements across your org's physical locations, check out the Network Planner tool, in the Teams admin center.

When you provide your network details and Teams usage, the Network Planner calculates your network requirements for deploying Teams and cloud voice across your organization's physical locations. For an example scenario, see Using Network Planner - example scenario.

Split tunneling means that traffic for Office doesn't go through the VPN but instead goes directly to Office Bypassing your VPN will have a positive impact on Teams quality, and it reduces load from the VPN devices and the organization's network. Other reasons why we recommend bypassing the VPN: VPNs are typically not designed or configured to support real-time media.

VPNs also introduce an extra layer of encryption on top of media traffic that's already encrypted.

Prepare your organization's network for Microsoft Teams

Planning for, or optimizing, a WiFi network to support Teams is an important consideration for a high-quality deployment. Consider these factors:. Plan and optimize the WiFi bands and access point placement. The 2. The 5 GHz range is better suited to real-time media due to its dense range, but it requires more access points to get sufficient coverage.Watch the following session to learn about the benefits of Direct Routing, how to plan for it, and how to deploy it: Direct Routing in Microsoft Teams.

This scenario is known as hybrid voice. Direct Routing enables you to:. Microsoft also offers all-in-the-cloud voice solutions, such as Calling Plan.

However, a hybrid voice solution might be best for your organization if:. Direct Routing also supports users who have the additional license for the Microsoft Calling Plan. For more information, see Phone System and Calling Plans. With Direct Routing, when users participate in a scheduled conference, the dial-in number is provided by Microsoft Audio Conferencing service, which requires proper licensing.

When dialing out, the Microsoft Audio Conferencing service places the call using online calling capabilities, which requires proper licensing. Note that dialing out does not route through Direct Routing.

For more information, see Online Meetings with Teams. Planning your deployment of Direct Routing is key to a successful implementation. This article describes infrastructure and licensing requirements and provides information about SBC connectivity:. The infrastructure requirements for the supported SBCs, domains, and other network connectivity requirements to deploy Direct Routing are listed in the following table:.

In the case that you would like to add external participants to scheduled meetings, either by dialing out to them or by providing the dial-in number, the audio conferencing license is required. This scenario is called an ad hoc conference.

The path that the call takes depends whether the user who escalates the call has a Microsoft Audio Conferencing license assigned or not:. Direct Routing also supports users who are licensed for Microsoft Calling Plan. However, the users' phone numbers must be either acquired online or ported to Microsoft. Mixing Calling Plan and Direct Routing connectivity for the same user is optional, but could be useful for example, when the user is assigned a Microsoft Calling Plan but wants to route some calls using the SBC.

One of the most common scenarios are calls to third-party PBXs. For more information about Phone System licensing, see Microsoft Teams add-on licensing. The SBC domain name must be from one of the names registered in Domains of the tenant. Assume you want to use a new domain name. For example, your tenant has contoso.

Before you can pair an SBC with the name sbc1. If you try pairing an SBC with sbc1. It might take up to 24 hours to fully provision the domain name after it is added to Domains of your tenant, a user with a new name is created, and a license is assigned to the user. It is possible that a company might have several SIP address spaces in one tenant. For example, a company might have contoso. Some users have address user contoso. For example, an SBC with the name sbc1.

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