VoIP

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Microsoft

Review of Teams Microsoft Business Phone System 2021

Now that we have installed Teams with Microsoft Business Phone System for clients (and passed the Teams exam) we want to share

Cisco

CCAPI: Internal Error (Software Error)

We changed a customer from PRI to SIP trunk and after the change, the Exchange UM stopped working for calls coming in

Adtran

Outbound faxes from a Dialogic SR140 not using T.38

Had an issue with an IP fax server (RelayFax with a Dialogic SR140 connecting via SIP trunk to an Adtran SBC) where

Cisco

Restart SIP service on CME without reloading the router

In order to restart or reset the SIP service on Cisco CallManager Express (CME) you can do the following: voice service voip

Exchange

Trouble with Exchange UM and arbitration mailbox corruption

One of our clients had an issue where their Unified Messaging arbitration mailbox had become corrupted.  We were unable to change the

Cisco

Registering voice-ports from a Cisco 881 SRST router to CME / UC500

The Cisco 881 router comes in an SRST flavor (C881SRST-K9) which includes 1 FXO and 4 FXS ports.  We recently ran into

Cisco

Music On Hold Streaming from an FXO port on CME 8.8

Here's another CME feature that did not work quite as expected when reading the documentation.  As with the conference bridge,

Cisco

Configuring a conference bridge in Cisco CME

I recently ran into an issue configuring a conference bridge for a client. What makes this particular problem worth sharing is that

Cisco

Using Cisco 8945 IP phones with CME

We just finished testing the Cisco 8945 IP phone with CME using SCCP and it worked great.  Point to point video works

Cisco

CME 8.8 upgrade and Exchange UM voicemail problem

We recently upgraded to the new Cisco CallManager Express (CME) version 8.8 so that we could try out the new 8945