Issues fixed in previous versions

These are the resolved issues in earlier versions of Pexip Infinity.

Version 19

Pexip

Ref # Limitation
13304 Packet captures can now be deleted via the Administrator interface.
13258 Resolved an issue where a participant was permitted to join a locked conference but sometimes remained in the "Waiting for Host" screen.
13239 Resolved some occasional issues with re-establishing node connectivity after a network outage, that led to failures including ADPs failing to dial and stalled nodes.
13025 The Pexip Infinity Administrator Guide that is available in the Administrator interface now includes the list of events that are reported by the next-generation Infinity Connect clients when usage reporting is enabled.
12956 RTMP calls are no longer fixed at a bandwidth of 2 Mbps.
12944 Video users transferring to an audio-only Virtual Meeting Room via a video-enabled Virtual Reception will now join the VMR with audio only (not audio and video as previously).

Microsoft

Microsoft Skype for Business and Lync

Ref # Limitation
12927 Resolved an issue in version 18 where Skype for Business clients would not receive presentation content when connected to VMRs or Virtual Auditoriums that were restricted to only allow Hosts to present content.
12882 Resolved an occasional issue where a Skype for Business client is presenting PowerPoint slides in a Skype for Business meeting and the second and subsequent slide transitions were not sent to standards-based endpoints that are gatewayed into that meeting.

Chrome browsers

Ref # Limitation
13113 Version 19 of Pexip Infinity is required to use the legacy Infinity Connect web app with Chrome version 71 or later, and Firefox version 62 or later.

Version 18

Pexip

Ref # Limitation
12635 Resolved an issue where changes to an existing theme may not have been synchronized to Conferencing Nodes, or themes may not have been synchronized to redeployed Conferencing Nodes.
12512 Fixed an issue where conference participants sometimes heard audio "crackles" and "pops" from other clients using the G.722 audio codec.
12179 Guest participants that are added via an API to a non-hosted conference now get disconnected as expected by the Guests-only timeout configuration when a conference ends.
11891 Resolved an issue where Pexip Infinity is handling main video and presentation on different nodes for a WebRTC gateway call, and a second dial-out may sometimes have occurred when the WebRTC client starts presenting.
11845 Resolved an issue where a Conferencing Node that had been running for more than 1 year without restart/reboot could cause calls to be rejected due to insufficient call licenses.
11548 Pexip Infinity will now send DTMF tones to Guest ADPs (Automatically Dialed Participants) who are connected to the "waiting for host" screen.

Microsoft

Microsoft Exchange

Ref # Limitation
12763 Resolved an issue where users were unable to join a scheduled meeting, if that meeting was a single occurrence in an existing (but non-Pexip scheduled) recurring series that was converted into a Pexip scheduled meeting.

Version 17.3

Pexip

Ref # Limitation
12238 Prior to version 17.3, Pexip Infinity would not retry the sending of VMR or device provisioning emails if the connection to the SMTP server dropped part way through the bulk-send operation associated with an AD sync operation. As of 17.3, Pexip Infinity now retries sending each individual email up to 3 times before moving onto the next email, and re-establishes dropped SMTP server connections up to 100 times per bulk-send operation.
12100 Resolved an occasional issue where calls into Pexip Infinity conferences that were disconnected due to issues such as lost network connectivity were still showing as conference participants from the conference's perspective.
12076 Occasional issues with corrupted WebRTC video sent from Pexip Infinity to Chrome have been resolved.
12066 "Call capacity limit reached" alarms are no longer raised when a conference has a participant limit applied and a new participant attempts to connect to that conference when it is at its participant limit, or when a client attempts to connect to the Test Call Service over RTMP.

Microsoft

Microsoft Skype for Business and Lync

Ref # Limitation
12205 Resolved an issue where video from a Skype for Business meeting could temporarily freeze when sent at certain resolutions.
12068 The VMR-level "enable chat" override setting now works as expected for Skype for Business participants connected to that VMR.
9712 Resolved an issue where in rare circumstances, participants connected to a Conferencing Node may have been disconnected from their conference if another participant on that node was attempting to reconnect to a SfB/Lync meeting and other SfB/Lync participants were simultaneously joining or leaving that SfB/Lync meeting.

Version 17.2

Pexip

Ref # Limitation
12036, 12037, 12038 Software mitigations for Meltdown (CVE-2017-5754), Spectre variant 1 (CVE-2017-5753) and Spectre variant 2 (CVE-2017-5715) are available in Pexip Infinity 17.2. See the Pexip Security Bulletin for more information.
12082 Calls are no longer dropped from a Conferencing Node if Pexip Infinity dials out directly to an H.323 device alias that has an associated DNS SRV record (applied to version 17.1 software only).
12028 Resolves an issue where responses to Management API requests would become delayed.
11741 Resolved an issue where the Pexip Infinity Administrator interface would occasionally report an "Internal server error" and create an associated administrator log entry containing "OperationalError in get_response: unable to open database file". These errors could also have occurred when using the Management API.

Microsoft

Microsoft Skype for Business and Lync

Ref # Limitation
12116 Pexip Infinity now spreads the signaling load across all suitable Conferencing Nodes within the selected location when initiating outbound Fusion calls to Skype for Business / Lync meetings.
11546 Pexip Infinity now requests Forward Error Correction (FEC) packets from Skype for Business clients in a SfB meeting when there is packet loss between a SfB client and the SfB AVMCU.
11441 Resolves an issue where an audio-only gateway call into a SfB meeting would repeatedly attempt to retrieve the presentation from the SfB meeting, thus generating unnecessary signaling traffic and administrator log messages.

Version 17.1

Pexip

Ref # Limitation
11855 Resolves an issue with Pexip Infinity not handling H.323 requestInProgress messages appropriately, causing it to timeout too early and disconnect H.323 call requests.
11806 When "Show names of participants" is enabled, the name of the main speaker is no longer shown when the main speaker image is at a low resolution (i.e. when the text is not readable).
11782 When using the Infinity Connect web app you can now select a microphone even if there are no cameras available for selection.
10916 Resolve an issue where calls could be dropped when an H.323 call was not properly set up.

Microsoft

Microsoft Skype for Business and Lync

Ref # Limitation
11908 Resolves an issue where VTC endpoints connected to a Skype for Business meeting would sometimes receive a "broken camera" image instead of video.

Version 17

Pexip

Ref # Limitation
10644 Fixed an issue where in gateway calls, the outbound leg of a call could sometimes remain connected if the calling party disconnected before the called party answered, and the outbound call was made from a different location to the inbound call.
10560 Resolves occasional issues with "Licenses expiring" warning alarms still being displayed after the expiration date has passed and a new license has been added.
10533 Resolves occasional issues with audio levels fading out when conference participants speak quietly or turn away from a room microphone.
10527 Image quality (perceived packet loss) has been improved when Pexip Infinity receives a stream containing reordered packets.
10483 Resolves an issue where provisioning emails were not sent if an LDAP sync template attempted to create two device aliases which differed only by case. This scenario is now logged as "Detected alias clash with another device created by this template".
10311 When using the scheduling recovery script, spaces in the --update-message flag are now parsed correctly.

Microsoft

Microsoft Skype for Business and Lync

Ref # Limitation
10844 Skype for Business Mac users now receive VbSS content correctly.
10792 Resolved an issue where participants may have been dropped from a SfB/Lync meeting if multiple gateway participants joined the meeting at the same time and an RDP presentation was in progress.
10084 Resolved an issue with freezing video in some environments from VTC towards Skype Meetings (despite good network conditions).
8607 When a Surface Hub or Skype Room System takes over as presenter, participants who have joined the conference via Pexip Infinity now see all of the slides that are presented.

Polycom

Ref # Limitation
11194 Resolves an issues where Polycom HDX and Group Series on firmware before v6, that are behind NATs, could not receive presentation from Pexip Infinity without sending presentation first.

Chrome browsers

Ref # Limitation
9996 Rarely, Chrome v58-60 could cause a valid incoming VP8 stream to become corrupt. This issue is resolved in Chrome v61 (see https://bugs.chromium.org/p/chromium/issues/detail?id=752886 for more information). Note that the Infinity Connect desktop client is not affected by this issue.

Version 16.2

Pexip

Ref # Limitation
10883 Resolves an issue in v16 and v16.1 where Pexip Infinity would not operate correctly when FIPS 140-2 compliance mode is enabled.

Version 16.1

Pexip

Ref # Limitation
10738 A Proxying Edge Node with dual network interfaces can now proxy media onto a Transcoding Conferencing Node that is also configured with dual network interfaces.
10690 Video from RTMP-based Infinity Connect web app clients now successfully resumes after video mute/unmute.
10639 Pexip Infinity now operates correctly if is configured with a TURN server on an IPv4 address and that TURN server allocates relays on an IPv6 address.
10613 The Pexip Infinity platform includes optimizations that result in decreased network bandwidth usage for presentation streams in a distributed conference.
10355 The Infinity Connect web app on Internet Explorer now correctly handles gateway calls that are rejected by the callee.
10329 The Pexip Infinity platform now has increased tolerance for drift in NTP time synchronization.
9553 There is improved packet loss resilience in media connections from a Conferencing Node to an Infinity Connect web app Chrome client and to the Infinity Connect desktop client.

Version 16

Pexip

Ref # Limitation
9966 Pexip Infinity is no longer case-sensitive when completing Certificate Signing Requests.
9961

Resolves issues where:

  • in some cases participants were not able to join meetings that were rescheduled after a failed join attempt, and
  • participants were not able to join the third occurrence of a recurring meeting.
9949 Calls to a service with a name that is between 190 and 255 characters long no longer causes dropped calls. Calls to a service with a name over 255 characters long (e.g. if generated by external or local policy) are now rejected.
9940 Fixes an issue where in some cases, when VMR Scheduling for Exchange joining instructions had been customized, the add-in would not be able to finish adding the joining instructions.
9762 Pexip Infinity no longer drops calls when attempting to route calls to Automatically Dialed Participants when the Call Routing Rule which matched and was being used to route the call to the ADP had "Call capability" set to "Same as incoming call".
9747 Pexip Infinity no longer adds quotes around the SNMP sysName and sysDescr fields.
9668 VMR Scheduling for Exchange now supports environments with more than one Exchange server.
9596 Pexip Infinity now has improved error handling when trying to upload a replacement certificate that is associated with a different private key to that used by the previous certificate.
9413 When using Proxying Edge Nodes, if an RTMP streaming participant is added to a conference, the RTMP media is now sent to the streaming server from a Proxying Edge Node (providing the location specified for the dial out contains proxying nodes, or the client that is adding the streaming participant is connected via a proxying node).
8987 The VMR Scheduling for Exchange service no longer requires there to be at least one VMR license available at the point at which Pexip Infinity attempts to create the scheduled VMR.
8905 Proxying Edge Nodes are no longer a technology preview feature and are now optimized for scale and efficiency.

Microsoft

Microsoft Skype for Business and Lync

Ref # Limitation
10000 Resolves an issue whereby on rare occasions if two Skype for Business / Lync clients in a Skype for Business / Lync meeting requested video at the same resolution but different bitrates from any VTC endpoints gatewayed into the meeting, then only one of the SfB/Lync clients would receive the video stream or a VTC endpoint would see a frozen grayscale image.
9036 Presentations are now sent in the content channel to SfB/Lync Mac clients, using RDP (or VbSS if available).
9002 When an endpoint is gatewayed into a SfB/Lync meeting via a Proxying Edge Node, participant thumbnails from the SfB/Lync meeting no longer show as a broken camera.

Version 15.1

Pexip

Ref # Limitation
9728 Participants via CUCM who disconnect while receiving a presentation will no longer cause a call session to be kept alive in the system.
9584 Resolves an issue where H.323 endpoints registered to Pexip Infinity would not be treated as registered.
9575 Resolves an issue where, in very rare circumstances, participants whose audio into Pexip Infinity used G.722 or PCMU/PCMA may have found that their audio was dropped.
9555 Sometimes a large diagnostic snapshot would not have contained all intended files. This has now been resolved.
9469 Calls could take up to 10 seconds to establish if some Conferencing Nodes were offline. Offline Conferencing Nodes no longer affect call setup times.
9415 Local policy can now process calls to services that use non-ASCII aliases.
9391 When using local policy, the basic pass-through service configuration script will now successfully create a Virtual Auditorium.
9339 Provisioning emails for synced VMRs and devices can now be sent via an SMTP server that is configured with "StartTLS" connection security.
9096 The conference lock indicator shown for meeting hosts can now be disabled.
9069 Infinity Connect web app via Chrome users who change their camera mid-call will no longer cause their microphone to unmute.
9030 Infinity Connect web app via Firefox v52 and later users who elect to share their screen and then select "No Screen" from the Firefox dialog are no longer shown the option to install the screensharing extension.
8920 Media load on Proxying Edge Nodes can no longer exceed 100%.

Microsoft Skype for Business and Lync

Ref # Limitation
9713 A race condition with ICE completion towards Skype for Business / Lync meetings causing a 488 error message has been resolved.
9620 Resolves a race condition where, under some circumstances, a VTC user who joined a Skype for Business / Lync meeting while VbSS was active would see the presentation but would not get main video from some SfB/Lync users.
9566 The streaming indicator is now shown to any connected VTC endpoints when a SfB/Lync meeting is recorded.
9479 An endpoint gatewayed via Pexip into a Skype for Business meeting with the role of Attendee no longer loses its connection if it starts presenting.
9227 Calls are no longer dropped if an endpoint that does not have a configured display name joins a Skype for Business / Lync meeting where somebody is presenting a PowerPoint file.
9149 Resolves an issue where, on very rare occasions, calls may have been dropped when Pexip Infinity attempts to re-establish a lost gateway connection to a Skype for Business / Lync meeting.
8482 VTC endpoints connected to a Skype for Business / Lync meeting via Pexip Infinity now restart sending audio/video when the meeting Host unmutes audio/video for all participants.

Avaya

Ref # Limitation
9193 Setting up SIP calls with Avaya XT series endpoints no longer causes calls to be dropped.

Version 15

Pexip

Ref # Limitation
8466 The Infinity Connect web app now supports Microsoft Edge version 40.15025.1000.0.
8435 Calls are no longer dropped due to buffering issues when attempting to conceal many seconds of missing packets.
8264 Resolved an issue in version 14.x, where in some cases the Hardware Instability alarm would not lower after 24 hours without an event.
6001 An Infinity Connect Host participant who has joined a Host-PIN-protected conference as presentation and control-only (and there are no other Host participants) is no longer offered the green telephone icon next to a participant's name in the roster to let a Guest participant (who is waiting to join) into the conference.

Version 14.2

Pexip

Ref # Limitation
8808 Resolves CVE-2017-6551. See Security Bulletin: CVE-2017-6551 for more information.

Version 14.1

Pexip

Ref # Limitation
8250 Outbound calls that do not accept all offered media streams from Pexip Infinity no longer fail if a subsequent empty re-INVITE causes a mix of encrypted and non-encrypted streams to be offered.
8267 The Infinity Connect web app now operates correctly on Android phones.
8247 Very occasional issues where backplanes between nodes would temporarily lose connectivity when the IPsec connection is rekeyed have been resolved.
8211 If an endpoint does not signal specific H.264 packetization mode support when setting up an H.323 call, Pexip Infinity will no longer ignore all H.264 capabilities.
8001 Occasional upgrade issues where a Conferencing Node would not automatically reboot at the end of its upgrade process have been resolved.

Microsoft

Ref # Limitation
8419 When a standards-based video system is gatewayed into a SfB/Lync meeting, that video system no longer receives low resolution video from a Skype for Business / Lync client when the video system is the active speaker.
8295 Calls are no longer dropped when a Skype for Business 2016 client joins a conference as audio-only and is then automatically escalated to video (because Pexip Infinity's "Lync / Skype for Business auto-escalation" global setting is enabled).
8240 Conferencing Nodes deployed in Microsoft Azure which are upgraded to v14 now always boot successfully after upgrade.
8237 Participants hosted on Pexip are no longer dropped if a participant connecting to a SfB/Lync meeting through Pexip starts presenting before their video to/from the meeting is active.
5951 Calls may no longer be dropped if a Virtual Auditorium is configured with different layouts for Guest view and Host view, and that Virtual Auditorium is then gatewayed into a Skype for Business / Lync meeting, the Virtual Auditorium.

Version 14

Pexip

Ref # Limitation
8032 Resolved an occasional issue where a sequence of a number of video frames which cannot be decoded would cause the conference to fail.
7876 Calls to a Virtual Reception are no longer dropped when a video endpoint connects a Virtual Reception that is configured as audio only.
7646 During periods of heavy network congestion, audio packet-loss concealment for AAC-LD, Opus and G.722.1 codecs no longer causes occasional audio drop outs.
7608 Recent versions of Skype for Business 2016 clients that are connected to a Pexip VMR no longer lose audio after approximately 10 minutes.
7447 When using the external policy API for a Virtual Reception ("two_stage_dialing") service type, the response from the policy server can now include the match_string and replace_string fields. (These fields allow the Virtual Reception service to limit the aliases which may be entered.)
7274 The zoom/pan function when viewing the media connections graph of an active conference via the Pexip Infinity Administrator interface now works correctly in Firefox browsers.
7273 Version 14 contains improved handling of bursting RDP streams that previously would very occasionally cause participants to drop from a conference.

Microsoft

Ref # Limitation
8128 Intermittent issues with connecting to a large Skype for Business meeting via the Pexip Distributed Gateway have been resolved.
8168 Intermittent issues with dropped calls when connected to a large Skype for Business meeting via the Pexip Distributed Gateway have been resolved.
7815 An occasional issue where merging a Pexip VMR or a gateway participant into a Skype for Business / Lync meeting would cause some participants hosted on Pexip to be dropped has been resolved.

Lifesize

Ref # Limitation
7737 Resolved an issue introduced in Pexip Infinity version 13, where Lifesize endpoints might no longer receive audio (when using the AAC-LD codec) when connected to a VMR.

Polycom

Ref # Limitation
7760 Resolved an issue where Pexip Infinity does not receive audio from Polycom Group Real Presence devices running v6 of their software when using the G.719 audio codec.

Chrome browsers

Ref # Limitation
7672 Chrome browsers no longer display an "Aw, snap!" error page when using the Play Test Sound option in the Infinity Connect web app.

Version 13

Pexip

Ref # Limitation
7589 RDP content-sharing connections to Microsoft Skype for Business / Lync clients are no longer included in participant counts when evaluating conference participant limits.
7538 Pexip Infinity no longer generates incident reports on receiving unexpected RDP traffic.
7529 Resolved an occasional issue where Pexip Infinity's attempts to communicate with an Infinity Connect desktop client that is registered to a Conferencing Node, but where the client cannot be reached, would generate incident reports.
7512 Occasional and intermittent issues where some endpoints fail to receive presentation content while in a VMR have been resolved.
7376 The participant's display name can now be overridden when dialing out to registered Infinity Connect clients.
7058 An occasional issue where calls may not disappear from the status list of conferences currently in progress after the call has completed has been resolved.
5832 An audio-only conference participant who is using the Infinity Connect web app via Internet Explorer, Microsoft Edge or Apple Safari browsers can now present content (share images or PDFs) to the conference.

Microsoft

Ref # Limitation
6638 When calling out to a Skype for Business / Lync client, Pexip Infinity will no longer time out if the Skype for Business / Lync client answers with video, switches to audio-only, and then re-escalates to video.
6471 A merged call between a SfB/Lync meeting and a Pexip VMR can now be initiated via a mobile Skype for Business / Lync client.

Version 12.2

Pexip

Ref # Limitation
7232 The Virtual Reception service accessed via the Infinity Connect web app can no longer accept invalid input.
7147 DNS queries now use a source port from the ephemeral port range.
7124 Resolved a rare race condition caused when a presentation is being attempted when a client is not ready to receive it.
7082 Issues around the incorrect selection of the camera and microphone when using the Flash plugin in the Infinity Connect web app under Internet Explorer or Safari have been resolved.
7066 An issue where a conference can erroneously appear as split between two locations when there is a temporary spike in network delay has been resolved.
6967

A number of improvements have been made to call signaling and setup time. These changes are important for systems and solutions that are under heavy call load. They include:

  • Faster parsing of SIP messages.
  • Reduced cross talk between Conferencing Nodes.
  • Backplane setup is now much faster and no longer occurs within the standard call setup queue.
  • Faster replication of configuration and status information between the Management Node and all Conferencing Nodes.
  • Improved virtual network performance to reduce the time taken for a packet to pass through to the application.
  • Proactive removal of messages from the call setup queue if they are canceled or stale.

6810 Presentation streams sent to RTMP clients are no longer cropped to fit. They are letterboxed/pillarboxed instead.
6259 Pexip Infinity now signals RDP content differently to prevent the Skype for Business client from crashing when the user clicks on the "Actual Size" icon.

Version 12.1

Pexip

Ref # Limitation
7043 Incident reports involving large allocations of memory are now written more quickly to disk.
6934 Attempting to use a camera on the Infinity Connect web app which has since been disconnected will now prompt for a new camera/microphone instead of saying "could not get access to camera/microphone".
6925 VMR bandwidth settings are now correctly applied for Infinity Connect web app clients using Firefox.
6889 Echo cancellation has been significantly improved in Flash-based Infinity Connect web app clients (i.e. Safari and Internet Explorer).
6858 When packet loss occurs, video from Chrome may freeze and then recover a couple of seconds later. Pexip Infinity now responds quicker to negative acknowledgement packets sent from Chrome in order to avoid significant freezes when packet loss occurs.
6852 / 6900 Pexip Infinity now supports sending DTMF tones to an endpoint using G722.1 as an audio codec. Previously the call would fail.
6817 Automatically Dialed Participants (ADPs) that are configured to route the call "Automatically" (i.e. where it must match a Call Routing Rule before it will call the ADP) now refer to the routing rules as expected.
6791 Pexip Infinity now correctly uses the specified Outgoing Location in a Call Routing Rule when that rule is used to place an outgoing call from a conference.
6772 You can now filter the list of Call Routing Rules when viewing them via the Pexip Infinity Administrator interface.

Version 12

Pexip

Ref # Limitation
6602 Historical usage statistics are now generated and displayed in a timely manner on the Pexip Infinity Administrator interface.
6586 Pexip Infinity will now share content between a VMR and Lync AVMCU when a user logged into a Lync/Skype Room System (LRS/SRS) creates a merged call. Previously this would fail.
6463 Under some circumstances Pexip would transmit video data at rates that would exceed network or endpoint buffers, leading to high packet loss. Pexip now transmits video packets smoothly within the configured bandwidth limit.
6429

The maximum PIN length for Host and Guest PINs has been extended from 10 to 20 digits.

If you use customized themes you should regenerate your PIN entry screen images to ensure that you have customized versions of the new screens (for the entry of 11–20 digits). This is particularly important if you use PINs with a trailing #.

6073 An issue where the conference avatar could not be retrieved via an external policy request has been resolved.
4971 A dual-streamed RTMP participant can now be added via the Administrator interface or management API.
4836 An Infinity Connect participant can no longer join as a presentation and control-only participant on a Conferencing Node that is out of resources.
4665 Incoming audio is now supported correctly on an incoming SIP call from SPIRENT iOS clients.

Microsoft

Ref # Limitation
6793 Pexip Infinity now interoperates properly with all Citrix thin client environments. An issue with Infinity not properly sending key frames outbound to Citrix Lync and Skype for Business Optimization Pack users when requested by the client, resulting in no video, has been fixed.
6313 The audio quality of connections between Pexip Infinity and Lync AVMCU has been improved. This release addresses audio synchronization and clipping issues.

Polycom

Ref # Limitation
5898 An issue with Polycom endpoints behind NATs not receiving presentation video has been resolved. Now, Polycom endpoints connecting from behind NATs will have full access to all capabilities, including audio, video, and bi-directional content sharing.
4684 An incoming H.239 presentation from an H.323 Polycom RealPresence endpoint is now properly recognized if that call flows through a Sonus SBC.