The following end-user requirements must be met to use the BT MeetMe VoIP Services client in conjunction with Cisco Webex.
|BT MeetMe VoIP
|Computer Memory||Minimum of 300 MB of free RAM|
Windows 7 32-bit / 64-bit
Windows 8 32-bit / 64-bit
Windows 8.1 32-bit / 64-bit
Windows 10 32-bit / 64-bit
Mac OS X 10.11 (El Capitan)
Mac OS X 10.12 (Sierra)
Mac OS X 10.13 (High Sierra)
Mac OS X 10.14 (Mojave)
NOT SUPPORTED: Mac OS X 10.15 (Catalina) and later
DTLS over UDP on port 7955
TLS over TCP on port 443
Note: Your corporate firewall ACLs may need updating prior to use.
Internet Explorer 10, 11 (Windows only)
Safari (Mac OS X only)
Note: Required for software download, viewing FAQs, User Guides, etc.
†Joining via Chrome requires an additional Chrome extension. You can install the extension here.
The following headsets have been tested by Dolby and approved to work optimally with the BT MeetMe with Dolby Voice plug-in:
Other headsets may work, but are not supported.
Windows: Microsoft .Net 4.0 Full, or Microsoft .Net 4.5 must be installed
Mac OS X: No additional dependencies are required
Fixed Bitrate G.711 Codec + Secure Tunnel Client Connection to BT Conferencing, Inc.
118 Kbps downstream,
118 Kbps upstream
Note: This bandwidth is in addition to any Cisco Webex bandwidth requirements.
The table below outlines the mandatory requirements to establish a secure tunnel between a Customer and the BT Network for the following clients: Dolby Web Client, Dolby Conference Phone, Dolby Mobile App and BT VOIP.
|Function - Mandatory||Protocol||Ports||Destination|
|DTLS Tunnel (SIP Signalling / RTP Media)
Call Control & In Conference Control
Customer support collateral
Web Traffic / Screen Sharing
For the Dolby Conference Phone please also refer to the Dolby Conference documentation located here: https://www.btconferencing.com/support/dolby-conference-phone/#specifications
Customer IT Managers who experience difficulty in establishing a secure tunnel with the BT Network when using the above settings must contact their BT Sales Engineer. Your BT Sales Engineer will assess the problem and may advise you to implement the following additional settings:
The table below outlines some additional requirements that may be required to establish a secure tunnel between a Customer and the BT Network for the following clients: Dolby Web Client, Dolby Conference Phone, Dolby Mobile App and BT VOIP.
|Function - Optional||Protocol||Ports||Destination|
|TLS Tunnel (SIP Signalling / RTP Media)||TCP||443||220.127.116.11/27
NOTES: Optional - Connectivity in failover conditions may be possible using TLS over TCP port 443. This will only be done through mutual agreement after consultation with the BT Sales Engineer as TLS over TCP is expected to deliver a degraded service and is not recommended for media.
You must consult your BT Sales Engineer prior to using these settings.
Access to the Service is permitted in the following countries [this list is subject to change]: