Live Network Reporting

In some situations live network troubleshooting can be helpful identify areas for in-depth network troubleshooting. In these cases, the Ohmni Robot has the ability to check network connectivity statistics while in-call. These are the steps in order to access the in-call network connection report. 

Live Network Reporting Tab

1. First, initiate a call into your Ohmni through the WebApp dashboard.
2. Once in call, locate the colored dot next to the gear icon on the bottom panel of the Ohmni HUD. 
3. Click on the colored dot and you will see a tab open on the side of your screen that shows the network statistics page. From this page you can view information about the available connection such as bit rate, RSSI, packet loss, and available roaming access points.

This page is particularly useful in cases where you may want to diagnose a less than ideal connection or view behaviors between your unit and the network it is connected to. 

You may notice that the colored dot we’ve referred to is one of three colors. Each color, determined by a MOS score, is a general description of the strength of your connection from your Ohmni to your network:

Green (Good): You will have no problems at all, the robot should respond  and the image quality should be very good
Yellow (Fair): Although a successful connection can be made, there might be some issues such as stuttering, quality loss, or slow response time. Even when yellow the Ohmni should be usable.

Red (Poor): While the connection is not poor enough yet to drop, you will most likely see a loss in video quality, responsiveness, and potential intermittent freezing. When the unit gets to this state it will be actively searching for a better connection. In the case that your icon displays red, it’s likely that the network is experiencing instability through packet loss, jitter, current delay etc.

Colored Ohmni connectivity icon location

Once opened, there are many metrics that are displayed on the network panel. Here is a basic description of each of the fields shown:

Connection

• Local: This is the IP address that is used to identify the network that your Ohmni is connected to.
• Local Type/Proto: This displays what kind of connection to your network the Ohmni has established (host, prflx, srflx or relay) and the type of transport layer protocol that your device is projecting. Note that the transport layer will always be UDP.
• Remote: This is the IP address that is used to identify the network that your device is connected to.
• Remote Type/Proto: This displays what kind of connection to your network your device has established (host, prflx, srflx or relay) and the type of transport layer protocol that determines the connection from your device to the Ohmni.
• Bytes Received: How much data in megabytes the Ohmni has transmitted to the user over the total time of the call.
• In bitrate: The rate in kilobits per second at which the Ohmni is sending information. Average is 4500kbps.
• Bytes sent: How much data in megabytes you have sent to the Ohmni over the total time of the call.
• Out bitrate: The rate in kilobits per second at which you are sending information to the Ohmni. Average is 1000kbps.
• RTT (Round Trip Time): The duration in milliseconds that it takes for data to be transmitted from you to your unit then back to you.

Wifi Info

• SSID: The identifier of your network device. Whatever you have named your WiFi will be displayed here.
• BSSID: The BSSID is the identifier of the specific access point the Ohmni is connected to.
• RSSI: This is how strong your Ohmni’s connection is to the specified device or access point. For reference, anything above -60 dBm should be a solid connection, if it is around -50 or above it is very strong.
• Link rate: This is the maximum speed that data can move across the Ohmni and its connection. 
• Freq: The frequency the Ohmni is connected to. This will also display whether the Ohmni is connected to a 5Ghz or 2.4Ghz network. For example, a 2412 MHz frequency is considered 2.4Ghz, and 5200MHz is considered 5Ghz. 

Video Send

• Resolution: Resolution is the amount of pixels displayed on the robot's display as sent by the caller. (i.e. The detail of the video), and is measured by horizontal pixels by vertical pixels. The maximum quality level on the Ohmni Robot is 1280x720. However, this can be affected by network statistics which may degrade video quality, such as RSSI strength, packet loss, or high RTT.

Video Recv

• Current Delay: Total overall delay of receiving video from the sender over the network. This is measured in milliseconds.
• Encoder: This is the type of encoder used to transmit video into digital files. The Ohmni uses a VP8 encoder.
• Jitter Buffer Ms: Jitter buffers even out the packets sent through the connection. A larger jitter buffer ms will indicate a larger delay from when the video is sent by the robot and received by the caller. This is measured in milliseconds.
• Packets Lost: When transmitting information over an internet connection, data transmitted through “packets” which can fail to reach the destination. Packet loss measures the incidence of data loss while in communication. High Packet Loss can result in freezing video, stuttering, distortion, or buffering.
• Frames Dropped On Track: Dropped frames are an identifier of an unstable connection. If the connection cannot keep up with a set bit rate, it will drop frames of the video to compensate.
• Resolution: Resolution is the amount of pixels displayed on the screen(i.e. The detail of the video), and is measured by horizontal pixels by vertical pixels. The maximum quality level on the Ohmni Robot is 1280x960. However, this can be affected by network statistics which may degrade video quality, such as RSSI strength, packet loss, or high RTT.

Audio Recv

• Current Delay: Total overall delay of receiving audio from the sender over the network. This is measured in milliseconds.
• Jitter Buffer Ms: Jitter buffers even out the packets sent through the connection. A larger jitter buffer ms will indicate a larger delay from when the video is sent by the robot and received by the caller. This is measured in milliseconds.
• Jitter: Jitter is a time deviation between when packets are sent and received. A high amount of jitter can cause a noticeable drop in the sound quality. This is measured in seconds.
• Preferred Jitter: Preferred jitter indicates the optimal buffer size calculated for samples at each point in time.
• Encoder: This is the type of encoder used to transmit audio sounds into digital files. The Ohmni uses an OPUS encoder.
• Sampling Rate: Sampling rate is the frequency of the audio coming through, measured in Khz. In the Ohmni Robot, This is defaulted to 48Khz. 
• Packets Lost: when transmitting data over an internet connection, the data that is transmitted through “packets” can fail to reach the destination. A high amount of packet loss in audio may manifest in cracking audio or dropped parts in the sound.

Nearby Roam APs

Nearby roam APs display the access points available in the vicinity of the Ohmni, as well as their data. Please refer to the WiFi Info portion for more information regarding these values.