When you have new voicemail, the Phone tab in the Skype for Business main window displays the number of your messages. See Contact Card opens the caller's contact card, which lists their phone number, email address, office location, and so on. Open Item in Outlook provides more information about the call.
When you login first time using a Social Login button, we collect your account public profile information shared by Social Login provider, based on your privacy settings. We also get your email address to automatically create an account for you in our website. Once your account is created, you'll be logged-in to this account.

Our last hope to fix can’t record voicemail on iPhone Verizon, AT&T, Sprint and T-Mobile is to reset network settings. Doing it won’t delete or alter the data, only the VPNs, APNs, Wi-Fi Passwords, Paired Bluetooth Devices, and other network-related settings will reset to default. Navigate to the Settings app. Go to General. Tap Reset and then select Reset Network Settings. Enter the password to proceed and confirm Reset.
Enter a name for the new greeting and then tap Save. Change your greeting. To use a greeting that you've already recorded or switch back to the default greeting: On your iPhone or iPad, open the Voice app . At the top left, tap Menu Settings. In the Voicemail section, tap Voicemail greeting.