![]() ![]() If you have been the target of solicitation, message the mods with a screenshot of the conversation and we will take action accordingly. Disagreements of varying intensities will happen, but particularly vitriolic attacks will be pruned from the discussion. If you do share identifying information, you must provide evidence that consent has been obtained. Do not share any identifying information such as names, addresses or phone numbers without consent. Reviews of businesses, products or services must go in the monthly reviews thread. Requests for business, product or service recommendations must go in the monthly requests thread. Do not invite, encourage, or seek help with engaging in unethical or fraudulent activity relating to VoIP, such as call spoofing, robocalling and autodialers, or fraudulent STIR/SHAKEN attestation. Do not send private messages to users, or invite users to send you a private message, for the purpose of promoting or advertising a business, service or product. Take packet captures to get an idea of call quality, and where it is degraded. Use traffic shaping/QoS where necessary, in the event that a link on the network is being saturated. This includes recommending a user change providers when they have not indicated they are interested in doing so. Check the network's bandwidth limitations and ensure there's enough bandwidth (as recommended/required by the voice system). Do not promote or advertise for any business, service or product unless responding to a specific request for recommendations. By checking these four common misconfigurations, you may be able to troubleshoot and find the cause of your audio loss before it really impacts your operations.Rule 1. One way audio ends conversations before they even get started. Other codecs outside of G.711u-law and G.729 will not be supported, resulting in the dreaded one way audio. If you do not have a G.729 license, or are unsure whether you do, please ensure that only G.711u-law is configured on your Flowroute trunk. Please note, however, that G.729 is a proprietary codec, which requires certain licensing to function successfully. We support two codecs for all calls: G.711u-law and G.729. Offering unsupported codecsĪnother reason for one way audio is having your system set to offering unsupported codecs within your PBX system. Consult your system documentation to see if you can statically configure the IP address, or use a STUN server, such as (), for public IP discovery. Most systems will allow configuration to advertise the correct public IP, either by statically configuring the address, or by the use of a STUN server to discover the current public IP address. If the system is on a NATed network, advertising a private IP address in the SIP signaling to our servers may cause one way audio. To ensure proper audio, make sure to advertise the correct public IP address. ![]() Advertising the correct public IP address Search each of your firewalls/routers for any SIP ALG settings, and disable it. Frequently, poor implementations of SIP ALGs create issues including one-way audio, dropped calls, run-away calls, and fax failures. The intended purpose of a SIP ALG is to assist PBXs and SIP phones behind NAT devices. SIP ALGs actively monitor and often modify SIP packets. SIP Application Layer Gateway (ALG), acts as an intermediary between your system and Flowroute. While you are in your firewall go ahead and check for SIP ALG. You may also need to configure port forwarding to direct these UDP traffic types to your system. But your firewall shouldn’t be the culprit if the UDP traffic types listed in this article are whitelisted by any firewalls at your locations. One common culprit for one way audio is your firewall. Here are some tips for identifying the most common reasons for one way audio, and how to fix them before they impact your ability to communicate with the outside world. Frequently, the reason for the trouble falls under a couple of easy diagnoses. One way audio is a common issue that we’re often called upon to troubleshoot.
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