TRENDnet TVP- 221H manual Case 2 Gateway Phone to PSTN Phone, Case 3 PSTN Phone to Gateway Phone

TVP-221H User’s Guide

The above process is the same for Gateway B phone 203 and 204 calls to Gateway A phone 201, 800 and 801.

Case 2: Gateway Phone to PSTN Phone

Gateway B phone 203 calls to PSTN phone A number 7777-1234

Caller Operation at GW B	Equipment Operation		Receiver Operation at GW A
Pick up phone 203 (204) on	1.	GW dial tone is heard.
GW B	2. GW B Line 3 LED
	“ON”
Dial 01-7777-1234	1.	Du Du is heard
	2.	VoIP call processing
Ring back tone is heard	1.	GW A Line 1 LED
	“ON”
	2.	GW A is connected to
	PSTN
Ring back tone is heard	1.	PSTN call processing	Phone 7777-1234 is ringing
			Receiver on 7777-1234 picks
			up
VoIP Conversation			VoIP Conversation

The above dialing process is the same for phones 203, 204 to any GW A local PSTN phone number.

Case 3: PSTN Phone to Gateway Phone

Phone A, number 7777-1234 calling Gateway B phone 203

Caller Operation at		Equipment Operation	Receiver Operation at GW
Phone A			B phone 203
Pick up phone A	1.	PSTN dial tone is heard.
Dial 8888-2222	1.	Call being processed
	2.	PBX plays voice greeting

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