We performed a comparison between Aastra Clearspan and IceWarp based on real PeerSpot user reviews.
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Aastra Clearspan is ranked 24th in Unified Communications while IceWarp is ranked 6th in Email Applications with 15 reviews. Aastra Clearspan is rated 0.0, while IceWarp is rated 8.6. On the other hand, the top reviewer of IceWarp writes "A tool that is scalable and can accommodate a large number of users but needs to improve the support it provides to its users ". Aastra Clearspan is most compared with , whereas IceWarp is most compared with Google Workspace, Zimbra Collaboration, Microsoft Exchange, Zoho Mail and KerioConnect.
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