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zman85
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Posts: 8
Joined: Wed Aug 14, 2019 3:09 am

SIP - Audio only in local network

Sun Nov 06, 2022 2:23 am

I have a Zycoo VOIP gateway. Two locations connected VPN -> IPsec, phones work between locations, but I have a problem with the voip client on the mobile phone. Whether I am in the LAN or am using cellular data, I can register, I can make a call, but only in the local network does my voice work. When disconnecting the WiFi network and connecting to cellular data, despite the fact that I can get through, I can not hear me or the recipient.

I have been sitting for several hours looking for the cause.

Service Port -> sip is enabled.
In addition, the command set in the NAT (because I can not connect without it, being in a different location, despite a VPN connection)
/ ip firewall nat add action = dst-nat chain = dstnat dst-port = 5060 in-interface-list = WAN protocol = udp to-addresses = 192.168.20.200 to-ports = 5060

Where to find the reason for the lack of sound?
 
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loloski
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Joined: Mon Mar 15, 2021 9:10 pm

Re: SIP - Audio only in local network

Sun Nov 06, 2022 4:20 am

this is not related to Mikrotik per se and usually audio issue means NAT traversal issue could be in-play, there's a lot of variable here you can start on hunting the issue the way that particular local is configured if they are configured behind a NAT or not in mind
 
zman85
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Posts: 8
Joined: Wed Aug 14, 2019 3:09 am

Re: SIP - Audio only in local network

Sun Nov 06, 2022 7:17 pm

Service Port -> sip is enabled.
This must be DISABLED, and after disable must be REBOOT.

Everything working. Thank You.

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