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Are there any settings in Windows Firewall that need to be ...

    https://support.denon.com/app/answers/detail/a_id/285/~/are-there-any-settings-in-windows-firewall-that-need-to-be-set-for-audio-files
    In Windows Firewall you will need to check off "WMP is allowed" or audio files will be blocked. Was this answer helpful? Rate answer 1 of 5 Rate answer 2 of 5 Rate answer 3 of 5 Rate answer 4 of 5 Rate answer 5 of 5

Sip Trunking and Firewall Settings

    https://www.siptrunk.com/2019/07/sip-trunking-and-firewall-settings/
    For audio, open RTP ports with the default IP Office ports at 46,750-50,750. You may also check for audio ports via your PBX. Ensure that there is no SIP inspection or SIP Transformations enabled. This depends on your firewall as well. Shut off the Application Layer Gateway (ALG) Cisco Firewall Use the following commands:

Configure a firewall to allow join.me VoIP

    https://help.join.me/s/article/joinme-jm-faq-firewalls?language=en_US
    Trouble connecting to audio? You may need to check your firewall settings. The join.me internet calling service uses the SIP standard to facilitate communication between the computer and the conference service. In some environments, this may require certain ports and IP ranges to be opened in your firewall.

SIP behind firewall no audio in both ways - Cisco Community

    https://community.cisco.com/t5/ip-telephony-and-phones/sip-behind-firewall-no-audio-in-both-ways/td-p/4191197
    SIP behind firewall no audio in both ways. Hello Everyone im new in voip im working in new project and i have this toplogy. Cisco jabber -->Cucm-->Cube-->Firewall (sophos)--->INTERNET (SIP-Trunk) the problem was the phone ringing but there's no sound in both ways and i think the problem is NAT. the firewall is sophos.

Car Audio Wiring Grommets & Firewall Bushings at Sonic ...

    https://www.sonicelectronix.com/ci694-grommets-firewall-bushings.html
    Stinger Firewall Grommet (PG12) 4 Gauge (7/8" Mounting Hole) Firewall Waterproof Grommet. • 4 Gauge Firewall Bushing. • Water tight seal when power wires pass through metal. • Locks securely as bushing is tightened. 8. Stinger Firewall Grommet (PG12) 4 Gauge (7/8" Mounting Hole) Firewall Waterproof Grommet.

Securing an AudioCodes Session Border Controller ...

    https://blog.enablingtechcorp.com/securing-an-audiocodes-session-border-controller-firewall-rules
    You must add firewall rules if the device is communicating with a AudioCodes One Voice Operations Center server (s) You must configure rules to permit traffic on the MAINTENANCE interface of a highly available pair of Mediant 2600s if you are including a blocking rule for that interface. These rules must be listed before the blocking rule

Zoom network firewall or proxy server settings – Zoom Support

    https://support.zoom.us/hc/en-us/articles/201362683-Zoom-network-firewall-or-proxy-server-settings
    Zoom network firewall or proxy server settings. If your app stays in a "connecting" mode or has timed out due to Network error, please try again or Can't connect to our service, please check your network connection and try again issues, it could be related to your network connection, network firewall settings, or web security gateway settings.

Troubleshooting One-Way Audio - OnSIP Support

    https://support.onsip.com/hc/en-us/articles/204132734-Troubleshooting-One-Way-Audio
    Our network will return the same port for inbound audio as outbound audio, which simplifies the job for the NAT devices involved. Check https://admin.onsip.com To see if your phones/firewall are sending OnSIP the proper packets, log into the Onsip interface and click on 'Users'. Click on the name of one of the users to see the User Detail.

How to troubleshoot one-way and no-way audio on VoIP …

    http://info.teledynamics.com/blog/how-to-troubleshoot-one-way-and-no-way-audio-on-voip-calls
    SIP ALG is a firewall setting that can either be enabled or disabled -- generally, the audio issues occur when it's enabled. (3) Incompatible Codecs When a VoIP call is initiated between two phones, they negotiate and choose a codec that is available to both devices.

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