Archive for Lync 2013

BT SIP Trunk – Calls Dropping After 2 Minutes on Mute

I recently ran into an issue whereby calls from a Skype for Business platform to the PSTN via a BT SIP trunk would drop after being on mute for exactly two minutes (120 seconds). In fact it didn’t matter if the call originated form the PSTN side either. The SIP trunk was terminated on an AudioCodes E-SBC Mediant 1000 running 6.8 firmware, and the problem could be replicated 100% of the time without fail. Anyone who regularly deploys and configures AudioCodes appliances will know that the vast array of configuration … Read the rest

Posted in Lync 2013, Skype for Business | 2 Comments

Unified Messaging can’t save the PIN for mailbox…

I recently experienced an issue within a reasonably large organisation when trying to enable Skype for Business / Lync users for Unified Messaging. The Microsoft Exchange messaging environment was in a healthy working state, with no indications of any other problems. However when attempting to enable a user for Unified Messaging (regardless of whether this was through the Exchange management shell or control panel), the process resulted in “Unified Messaging can’t save the PIN for mailbox… there was an error accessing the mailbox using EWS”

At the same time the … Read the rest

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Cannot Grant ReportsReadOnlyRole to User

Cannot grant ReportsReadOnlyRole to a User is an error that you might receive when attempting to deploy Skype for Business monitoring reports – a component that should always be configured alongside any Enterprise Voice deployment due to the wealth of information that it can provide on the quality and quantity of the communication sessions that take place inside your environment. Skype for Business monitoring reports are not deployed during the publishing of the monitoring databases themselves, and should instead be deployed desperately using the Skype for Business deployment wizard. During … Read the rest

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PSTN calls dropping after 30 minutes with AudioCodes SBC

Consider the scenario – You have a Lync or Skype for Business platform sat behind an AudioCodes gateway or SBC. When placing an outbound call to the PSTN, the call establishes and flows correctly for exactly 30 minutes. At the 30 minute point you lose audio, and 30 seconds later the call drops completely. Peer to peer internal, external and federated calls work fine. If you run a syslog trace on the SBC, you’ll see that the BYE message is being generated by Lync / Skype for Business, so we … Read the rest

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Assign Active Directory Telephone Numbers in Bulk

Skype for Business best practice has always dictated that whenever and wherever we define telephone numbers (DDI’s / Line URI’s), we do so in E.164 – the standard for PSTN numbers which ensures each is globally unique. Additionally, maintaining this standard across our organisation means a consistent number presentation format for end users, so we’re not seeing +441392123456 in some places, and 01392123456 in others. Knowing this, the number defined in an Active Directory telephone field of a user object should also be defined in E.164, and as a result … Read the rest

Posted in Lync 2013, Skype for Business | 2 Comments

Polycom VVX Alternate Ringtone Bundle (Unofficial)

The Skype for Business qualified VVX series of desk phones produced by Polycom have fast become the device of choice for many organisations and IT professionals due to their rich feature set, well pitched price point, and polished finish. In addition to working very closely with Microsoft, the backing these devices receive from a large majority of socially active MVP’s and other UC evangelists has kept the series firmly in the spot light since our move on from Lync Server 2013. That said, and as trivial as this is – … Read the rest

Posted in Lync 2013, Skype for Business | 1 Comment

Skype EWS not Populating for External Users with O365 UM

I recently reviewed an on-premises Skype for Business environment with Office 365 hosted Unified Messaging; a scenario that’s becoming more common by the day (you know how university graduates toss their mortarboards or caps in the air once they’re done… it’s that… but with mailboxes). Everything looked fine, but a problem existed in that external Skype for Business clients were failing to pull through Exchange EWS details, although internal Skype for Business clients had no problem at all. Naturally this left external users without some core Skype for Business functionality … Read the rest

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