厦 门 四 信 通 信 科 技 有 限 公 司
Xiamen Four-Faith Communication Technology Co., Ltd.
Add：J1-J2,3rd Floor,No.44,GuanRi Road,SoftWare Park,XiaMen,China
16
Zip Code
：
361008
Tel：+86 592-6300320, +86 592-6300321, +86 592-6300322 Fax：+86 592-5912735 http://
www.four-faith.com www.fourfaith.com
APN: access point name.
Username: username to login the ISP network.
Password: password to login the ISP network
Call Center: the call center phone number
AT Command of APN:
AT+APN=xxxx
xxxx: access point name
AT Command of Username:
AT+USERNAME=xxx
xxx
：
username
AT Command of Password:
AT+PASSWORD=xxx
xxx
：
password
AT Command of Call Center:
AT+CENT=xxx
xxx: call center phone number of ISP
◆
SMS Center
Your local SMS center number
AT Command:
AT+SMSC=xxx
xxx: your local SMS center number
◆
Heartbeat Interval
Time interval sent heartbeat packet. (unit is second)
AT Command:
AT+POLLTIME=xxx
xxx: heartbeat packet time interval
◆
Call Trigger Phone No
This item is only valid when the “Trigger Type” is CTRL or MIXD. In this trigger
type, DTU will keeps in idle state until it receives the trigger phone call, then it will
