NathTel's SIP Server Details:Primary SIP Server: sip01.nathtel.net or 220.127.116.11Secondary SIP...Can I use my own SIP Device?
Yes, you can use your own unlocked SIP Device. You need to contact our technical department via...Do I need a router to be able to use Nathtel Phone?
All of our SIP ATA Devices have builtin router.Internet connection require for Nathtel phone.
In order to take advantage of our VoIP phone service you will need a high-speed Internet...What is the bandwidth requirements for Nathtel?
Our Service require a minimum 256Kbps connection (upload and download).
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