Grandstream HT503 FXO Trunk
VoIP PBXs, Datacenters, Cabling Installation, KNX
VoIP PBXs, Datacenters, Cabling Installation, KNX
15817
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Grandstream HT503 FXO Trunk

Grandstream HT503 FXO Trunk

Even though we have used it in the past, we would not recommend it for professional use.

However, please try the below configuration (update the bold values):

1. Asterisk Side

 

SIP TRUNK

Trunk Description: PSTN

Outbound Caller ID: Your Phone Number

Maximum Channels: 1

Outbound Dial Prefix:  9 (Leave it blank if the call gets disconnected)

Trunk Name: 300

SIP TRUNK: PEER DETAILS

disallow=all

allow=ulaw&alaw

dtmfmode=rfc2833

host=dynamic

context=from-trunk

qualify=yes

nat=yes

port=5062

secret=YOUR PASSWORD

type=friend

username=300

sendrpid=yes

Outbound Rules

Dial Patern: 9|.

2. HT503 Side

 

Basic Settings

PSTN Access Code: 9

Unconditional Call Forward to VOIP:  your_extension@AsteriskIP:5060

Advanced

Call Progress Tones

Dial Tone: f1=425@-13,f2=425@-19,c=200/300-700/800;

Ringback Tone: f1=425@-13,f2=425@-19,c=150/150;

Busy Tone: f1=425@-13,f2=425@-19,c=300/300;

Reorder Tone: f1=425@-13,f2=425@-19,c=200/300-700/800;

Confirmation Tone: f1=425@-13,f2=425@-19,c=200/300-700/800;

Call Waiting Tone: f1=425@-13,f2=425@-19,c=300/1000-300/1000;

FXO

Account Active: Yes

Primary SIP Server: AsteriskIP

SIP User ID: 300

Authenticate ID: 300

Authenticate Password: YOUR PASSWORD

Name: PSTN

Dial Plan: { x+ | *x+ }

Local SIP Port: 5062 (Same as the Trunk, usually 5061)

Caller ID Scheme: Bellcore/Telcordia

Gain: TX & RX: +6db

FXO Termination

Enable Current Disconnect: No

Current Disconnect Threshold (ms): 200

Enable PSTN Disconnect Tone Detection: Yes

PSTN Disconnect Tone: f1=425@-19,f2=425@-19,c=150/150;

AC Termination Model: Country-based (GREECE) (Change it to your Country)

Channel Dialing

DTMF Digit Length (ms): 100

DTMF Dial Pause (ms): 100

First Digit Timeout (sec): 10

Inter-Digit Timeout (sec): 5

Wait for Dial-Tone: No

Stage Method (1/2):   1

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