Question
- What IP addresses do I need to add to my firewall if I'm using Nexmo Voice services?
- What IP addresses do you use to send requests to my SIP URI?
- What IP addresses do you use to send Media, Voice API, TTS, NCCO requests and SIP traffic to my SIP URI?
- Can I use a firewall and still receive inbound requests from you?
- I am not receiving requests to my SIP URI. Why might this be?
- There is no audio (sound) on my call and I use a firewall?
Answer
Nexmo provides various voice products and services, if you are restricting inbound traffic please whitelist the following subnets based on your product usage.
SIP signalling
173.193.199.24
174.37.245.34
5.10.112.121
5.10.112.122
119.81.44.6
119.81.44.7
Port: UDP/TCP on 5060, TLS on 5061
SIP callbacks
119.81.173.16/28
161.202.24.16/28
169.47.144.176/28
169.50.120.160/28
169.54.125.48/28
Media port range 10000:20000
Voice API callbacks, NCCO download requests, Audio file download requests
119.81.44.0/28
173.193.199.16/28
174.36.197.192/28
174.37.245.32/29
5.10.112.112/28