- BlackBerry® Mobile Voice System (MVS) 5.0
- BlackBerry® Mobile Voice System (MVS) 5.1
The audio can be choppy and calls may not connect when a call is placed using the Voice over Wi-Fi® transport with BlackBerry® Mobile Voice System (MVS).
The issue could be related to one of the following causes:
- Insufficient network connectivity
- Bandwidth optimization issues
Enable Quality of Service on the Wi-Fi router or access point. For more information, consult the documentation supplied with the Wi-Fi router or wireless access point. Alternatively, consult the vendor of the Wi-Fi router or access point.
Disclaimer
By downloading, accessing or otherwise using the Knowledge Base documents you agree:
(a) that the terms of use for the documents found at www.blackberry.com/legal/knowledgebase apply to your use or reference to these documents; and
(b) not to copy, distribute, disclose or reproduce, in full or in part any of the documents without the express written consent of RIM.
Visit the BlackBerry Technical Solution Center at www.blackberry.com/btsc.

