Vortex CallMe is fully compatible with sip.audio. It includes OPUS, our preferred codec for interoperability.

Call ISDN line from Vortex CallMe-TR with a sip.audio account

1. Log in to the web interface for your CallMe unit using its IP address.
2. Under SIP Settings, configure as follows...
   Username: SIP Account Username (For example, enter fmstation.callme for fmstation.callme@sip.audio)
   Password: SIP Account Password
   Domain: sip.audio
   Proxy: proxy.sip.audio
   Register: ON
   Accept Incoming Calls: ON
3. The SIP status at the top of the page should show SIP REGISTERED.

1. Click 'Status' and then 'Call'.
   For Destination, enter destination.account@sip.audio or just destination.account
   Codec: Opus
2. Click 'Call'.

You must have a DNS server set for a static IP. If in doubt, use Google's 8.8.8.8

Firmware must be version 1.6 or later.

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