Nov 25 2016

Web Conferencing Server connection failed to establish. Event ID 41987

skype-for-businessWeb Conferencing Server connection failed to establish.

Over the past 1 minutes Skype for Business Server has experienced incoming TLS connection failures 1 time(s). The error code of the last failure is 0x80090325(SEC_E_UNTRUSTED_ROOT) and the last connection was from the host “”.
Cause: This can occur if this box is not properly configured for TLS communications with remote Web Conferencing Server.
Resolution:
Check your topology configuration to ensure that both this host and remote Web Conferencing Server can validate each other TLS certificates and are otherwise trusted for communications.

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Nov 25 2016

No connectivity with any of Web Conferencing Edge Servers. Event ID 41026

skype-for-businessNo connectivity with any of Web Conferencing Edge Servers. External Skype for Business clients cannot use Web Conferencing modality.

Cause: Service may be unavailable or Network connectivity may have been compromised.
Resolution:
Verify all Web Conferencing Edge Services in the topology are running, and network connectivity is available.

There are four most common reasons for this error: Continue reading

Nov 25 2016

Understanding Asterisk call files

Asterisk PBXAsterisk call files are text files with a certain structure that tell Asterisk to initiate a call when moved to /var/spool/asterisk/outgoing directory. You can use them in order to initiate calls without an extension or bypass the dialplan for troubleshooting purposes. They can be scheduled on any time and date you want and used for call campaigns. Continue reading

Nov 18 2016

Skype for Business (Lync) Enable/Move Users in Bulk

skype-for-business

You can easily enable users for Skype for Business (Lync) in bulk based on group membership, department, organizational unit or other criterias. You don’t need any special tools but Get-CsADUser and Enable-CsUser comandlets. You can move users to another pool in similar manner by using Move-CsUser instead of Enable-CsUser commandlet.

Here are some examples to get you started. Continue reading

Sep 29 2016

Data Protection Manager Error ID 948 Unable to open console

I’m trying to open Data Protection Manager console from user different than the one performed installation. Despite the fact my user is a Server Administrator as well I receive:

DPM-Console-error-id-948-unable-to-connect

Unable to connect. Verify that the DPM service is running on this computer.

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Sep 08 2016

Windows Server 2012 The file is likely corrupt or the victim of tampering

If the driver you are trying to install is not properly signed you will get the following screen:

the-hash-is-not-present

“Windows found driver software for your device but encountered an error while attempting to install it. The hash for the file is not present in the specified catalog file. The file is likely corrupt or the victim of tampering.”

If you are sure about the driver you are trying to install then you need to disable  driver signature enforcement in Windows.

You can do this in 2 ways.

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Sep 08 2016

Disable driver signature enforcement in Windows

Disable-Driver-Signature-Verification-on-64-Bit-Windows-8-itgala.xyz

Windows 8 and Windows 10 require device drivers have a digital signature. Otherwise the system will not install a driver. Signature allows to determine driver developers and also shows whether the driver is changed after the release of third parties. Drivers are signed with certificates for signing files.

For devices that come with unsigned drivers you will have to disable driver signature enforcement in Windows in order to install them.

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Sep 08 2016

Connect GoIP8 GSM gateway to Asterisk

GoIP 8

Here are the steps how to connect GSM Gateway GoIP8 to Asterisk. Required features: the possibility to outgoing calls and receive incoming. For outgoing calls to have a choice of an arbitrary line.

1.  GoiP 8 configuring

It is assumed that you have a new device out of the box, so the steps – as for factory settings.

Insert SIM card in slots, turn on the power. GoIP8 has 2 ports “LAN” and “PC”.

The  «PC» port has a static address 192.168.8.1 by default and can be used to connect switches which can be connected to users’ PC (gateway supports DHCP server).

 

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Aug 10 2016

Skype for Business (Lync) Dial-in Conferencing Phone Numbers Displaying

skype-for-businessA company is moving it’s conferencing to on-premise Skype for Business server. When conferences were deployed on Asterisk we could form an email invitation with meeting ID and conference numbers attendee can call to get into the conference. Here the company wants similar and display all dial-in conference numbers in Skype for Business (Lync) invitation.

When you create a dial plan in the Skype for Business Control Panel, you can set a value for Dial-in conferencing region. This value is used to group dial-in conferencing phone numbers and present those to users assigned to that particular dial plan.

S4B-dialplan-configure-region Continue reading

Jul 31 2016

Why you should use Signal as your messenger

Signal-Private-Messenger

I can bet that 9 of 10 smartphone owners use some text messenger to chat with family and friends. You must be too… Have you heard about Signal messenger? If you take care seriously about your privacy I can bet you do heard or use it already! If not – maybe it’s a right time to start! I’m not going to prove again here that keeping your identity private in Internet must be a part of your life philosophy. All I want to remind now is: you are never know what information and when will be used against you. Continue reading

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