security firewall for voip gatewys

Please if you are not have full idea what i say dont make offer

i have voip gateways connected by VPN called VIBE

i have firewall on vibe server to block all SIP calls not from my voip server but i still recive calls on my Gateway i need one who can find how i can stop this unauthorized calls

Competenze: Asterix PBX, Cisco, VoIP

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Sul datore di lavoro:
( 8 valutazioni ) Amman, Jordan

ID Progetto: #16494676

6 freelance hanno fatto un'offerta media di $160 per questo lavoro

$100 USD in 3 giorni
(43 Recensioni)
$166 USD in 1 giorno
(5 Recensioni)

Hello Hope you are doing well . I have 6 years of experience in Linux administration . I can setup proper firewall settings to prevent call attacks . Please let me know what firewall is previously used . Più

$150 USD in 2 giorni
(1 Recensione)
$155 USD in 3 giorni
(0 Recensioni)
$222 USD in 2 giorni
(0 Recensioni)

A proposal has not yet been provided

$166 USD in 2 giorni
(0 Recensioni)