WMM has mapped values which can be found in this article. Below is table showing the mapping between common traffic types and their respective markings:. Meraki performs our own testing across the entire spectrum of devices and our customer support team handles and reports bugs quickly.
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This section will provide recommendations based on real-world deployments by Meraki customers combined with the best practices developed by Meraki and the vendors mentioned below. Microsoft Lync is a widely deployed enterprise collaboration application which connects users across many types of devices. The ports provided in the above table are the standard ports provided by Microsoft. Administrators should ensure that upstream QoS is in place and that the QoS markings outlined below are in place for the phones. For more information on this partnership, please see Apple's website.
First create a group policy you would like to apply to Apple devices. Vocera badges communicate to a Vocera server, and the server contains a mapping of AP MAC addresses to building areas. The server then sends an alert to security personnel for following up to that advertised location. Location accuracy requires a higher density of access points. Apple maintains a list of carriers that have wifi calling ready and devices that support it. Hotspot 2. Part of the Click to Learn More. You can find out more about Cisco Meraki on our main site, including information on products, contacting sales and finding a vendor.
Most questions can be answered by reviewing our documentation, but if you need more help, Cisco Meraki Support is ready to work with you. In the Meraki Community, you can keep track of the latest announcements, find answers provided by fellow Meraki users and ask questions of your own. Sign in Forgot Password.
Dashboard Support Contact Sales. The score ranges from 1 to 5, with 1 being the poorest quality and 5 being the highest quality.
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Enable Bridge mode. Prefer 5 GHz coverage for voice applications due to the lower noise floor compared to 2. Band Selection The 2. Minimum Bitrate For Voice networks, 12 Mbps is recommended as the minimum bitrate.
Telecommunications Service Provider - WAN Hardware
This step in the guide is optional. Traffic Shaping Rules Use traffic shaping to offer voice traffic the necessary bandwidth. This ensures there's a field to which the CoS value can be written. The parameter is still valid for backward compatibility with Microsoft Lync Server ; however, it has no effect on devices used with Lync Server Do not utilize the Dual band operation with Band Steering option.
If the 2. Set the Minimum bitrate to 11 Mbps or higher. Save as PDF Email page. Last modified.
Voice over IP
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Article ID ID: Explore Meraki You can find out more about Cisco Meraki on our main site, including information on products, contacting sales and finding a vendor. Explore Meraki. Contact Support Most questions can be answered by reviewing our documentation, but if you need more help, Cisco Meraki Support is ready to work with you.
Finally conclusion has been made in section 5. In , T. Koshimizu, I. Tanaka, and K. Later, Mike Hibbered published his article that shows how VoLTE will change the ways of communication and emphasis on data handling. In , Jo, et al. They focus on packet prioritization and frequency allocation prioritization [ 8 ]. In , Sumit Gautam and Durga Parsad Sharma [ 9 ] purposed solution to reduce the voice call interruption time during mobility. Their performance target for average voice interruption time is less than 0.
Strategical Approach for VoLTE Performance Improvement
Most of the previously purposed solutions [ 6 - 8 ] and studies focus on mobility and capacity of network. So these parameters are taken into care while designing the optimization methodology in section 3. We divided these optimization and troubleshooting areas into three major parts as given below:. In this paper we compare three voice possibilities for excellence and efficiency Figure 1 :. For this analysis purpose, we used narrowband bandwidth range of MHz and wideband bandwidth of MHz. Regular call connection uses either narrowband or wideband but VoLTE by default uses wideband.
Score is given between 1 to 10 scales i. Figure 2 presents the scores of voice quality with different voice applications.
VoLTE secured score of 8. Other OTT application e. Viber, Skype etc. Overall OTT average score is 8. Cell loads percentage is measured by number of users divided by max limit of eNodeB. Considerations for test:. The voice quality and mouth to ear delay for VoLTE remains constant for all loads as shown in Figure 3. Hence we can say that quality of service and smart MAC priority scheduler [ 4 - 5 , 11 , 12 ] in the eNodeB helps to optimize the network.
Secondly it helps to the paging response delay which results in reduction of call setup time of VoLTE. Average call setup time for VoLTE call in these tests is between 1.
The optimizations mainly focus on these KPIs. With enabling the TTI bundling, uplink become more robust and increases the coverage by dB. Similarly, we experiment eNodeB with and without robust header compression feature. Robust header compression basically runs between UE and eNodeB. In small chunks of data RoHC helps to increase the network capacity.
For example if the actual data size is So in such scenario RoHC feature plays important role and increases capacity. RoHC functionality describes in Figure 5. Capacity of network. UE battery can extend either by handset architecture modification or by efficient DRX feature in network.