outbound call to POTS hangup after 5 rings

I reloaded the asterisk with reload command and even rebooted the asterisk server. but still not success.

[globals]
#include globals_custom.conf
CALLFILENAME = ""
DIAL_OPTIONS = tr
TRUNK_OPTIONS =
DIAL_OUT = 9
FAX =
FAX_RX = system
FAX_RX_EMAIL = This email address is being protected from spambots. You need JavaScript enabled to view it.
FAX_RX_FROM = This email address is being protected from spambots. You need JavaScript enabled to view it.
INCOMING = group-all
NULL = ""
OPERATOR =
OPERATOR_XTN =
PARKNOTIFY = SIP/200
RECORDEXTEN = ""
RINGTIMER = 100
DIRECTORY = last
====

Debug log:

-- Executing [s@macro-dialout-trunk:17] Macro("SIP/6000-b790cbf8", "dialout-trunk-predial-hook|") in new stack
[Mar 19 15:45:11] WARNING[3813]: app_macro.c:214 _macro_exec: Context 'macro-dialout-trunk-predial-hook' for macro 'dialout-trunk-predial-hook' lacks 's' extension, priority 1
-- Executing [s@macro-dialout-trunk:18] GotoIf("SIP/6000-b790cbf8", "0?bypass|1") in new stack
-- Executing [s@macro-dialout-trunk:19] GotoIf("SIP/6000-b790cbf8", "0?customtrunk") in new stack
-- Executing [s@macro-dialout-trunk:20] Dial("SIP/6000-b790cbf8", "ZAP/g0/545384|300|") in new stack
-- Called g0/545384

Hi bishal,
Did you set the analog card for your country?

This is my /etc/zaptel.conf settings:

# Span 1: OPVXA1200/0 "OpenVox A1200P/A800P Board 1" (MASTER)
fxsks=1
fxsks=2
fxsks=3
fxoks=9
fxoks=10

# Global data

loadzone = us
defaultzone = us

Hi bishal:
please check you dialplan:
Dial(type/identifier,timeout,options)
you can try to change " timeout" to a higher number.