SIP
- Can I use customer SIP headers?
- How can I create a redundant SIP forwarding configuration?
- Special Characters in Forward to SIP Address
- What does xxx SIP call status mean?
- Can I call Emergency Services (e.g. 911, 999, 112) using Nexmo? [E911]
- How can I connect a soft phone with Nexmo's SIP trunk to make outbound calls?