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No UDP on port 5060? (Aka SIP...)

bradmca
Newbie
Posts: 2
Registered: ‎15-02-2019

No UDP on port 5060? (Aka SIP...)

I can receive VoIP calls from my SIP trunk on a Windows client via broadband (Vodafone now), and on my Xiaomi Android phone via the BB connection, bit when I disconnect from WiFi and use Plusnet 4g, the connectivity is gone.... So this must not be available from Plusnet mobile?

Dress it in a flavour of "unsupported" at will.. anyone had luck with SIP connection via Plusnet mobile?
4 REPLIES 4
Superuser
Superuser
Posts: 7,306
Thanks: 1,189
Fixes: 76
Registered: ‎30-07-2007

Re: No UDP on port 5060? (Aka SIP...)

The EE network uses. CGNAT and so VoIP is unlikely to work I'm afraid.

bradmca
Newbie
Posts: 2
Registered: ‎15-02-2019

Re: No UDP on port 5060? (Aka SIP...)

Is there an MVNO where SIP would work? Giffgaff on O2 perhaps?
Community Veteran
Posts: 5,547
Thanks: 335
Fixes: 5
Registered: ‎11-08-2007

Re: No UDP on port 5060? (Aka SIP...)

RichardB
Pro
Posts: 461
Thanks: 146
Fixes: 10
Registered: ‎19-11-2008

Re: No UDP on port 5060? (Aka SIP...)

Another option albeit techy option could be to use a VPN?

I use Openvpn on my phone to connect to my home network.

The VPN server being a Raspberry Pi.

The VPN tunnels through the mobile networks CGNAT.