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Configuring Basic Settings
pmp-0884 (September)
2-13
Direct IP calls
Direct IP calling allows two phones, that is, an ATA with an analog phone and another VoIP Device, to talk to each
other without a SIP proxy. VoIP calls can be made between two phones if:
•
Both ATA and the other VoIP device (i.e., another ATA or other SIP products) have public IP addresses, or
•
Both ATA and the other VoIP device (i.e., another ATA or other SIP products) are on the same LAN using
private or public IP addresses, or
•
Both ATA and the other VoIP device (i.e., another ATA or other SIP products) can be connected through a
router using public or private IP addresses.
To make a direct IP call, first pick up the analog phone or turn on the speakerphone on the analog phone, Input the
IP address directly, with the end “#”.
Call Hold
While in conversation, pressing the “*77” to put the remote end on hold, then you will hear the dial tone and the
remote party will hear hold tone at the same time.
Pressing the “*77” again to release the previously hold state and resume the bi-directional media.
Blind Transfer
Assume that call party A and party B are in conversation. Party A wants to Blind Transfer B to C:
Party A dials “*78” to get a dial tone, then dials party C’s number, and then press immediately key # (or wait for 4
seconds) to dial out. A can hang up.
Attended Transfer
Assume that call party A and B are in a conversation. A wants to Attend Transfer B to C:
Party A dials “*77” to hold the party B, when hear the dial tone, A dials C’s number, then party A and party C are in
conversation.
Party A dials “*78” to transfer to C, then B and C now in conversation.
If the transfer is not completed successfully, then A and B are in conversation again.