Yes, the internal profile exists.
Name Type Data State
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internal profile sip:mod_sofia@192.168.10.25:5060 RUNNING (0)
internal-ipv6 profile sip:mod_sofia@[::1]:5060 RUNNING (0)
external profile sip:mod_sofia@192.168.10.25:5080 RUNNING (0)
example.com gateway sip:joeuser@example.com NOREG
192.168.10.25 alias internal ALIASED
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3 profiles 1 alias