STEP 3:
Repeat the same configuration steps on ATA B, and check the machine registration status, make sure the registrations are completed.
Test the scenario:To verify the VoIP communication, please Pick up the telephone
Dial the destination number to make call between SIP clients. For example, ATA A (with number 1001) with keypad number 1002 to ATA B, or reversely make calls from SIP client (ATA B) to the number 1001 (ATA A)
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