Grandstream Networks HT503 User Manual
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Surveillance Solution – How To Do It?
Grandstream has a full series of products for VoIP, Video and Surveillance. This article explains how to
configure a surveillance solution for residential users or small enterprise users.
The main purpose of such application is to ENHANCE your alarm system, avoid the unnecessary false alarm
which could be expensive because of law enforcement involved (just two or three such false alarm will cover
the cost of the whole equipment investment). Also in some degree, this solution will help user to reduce the reoccurring monthly charge of security service.
Pre-Request:
1) Home Computer Network and PSTN line (similar POTS line)
2) HT503 and GXV3615 (or ANY model of Grandstream surveillance product)
3) Smartphone with Internet connection
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Configuration
Laptop
GXV3XXX
Surveillance Device
Smartphone
3G/4G BS
or
Wi-Fi AP
Analog Phone
HT503
Router
LAN
The solution is based on IP or computer network, therefore static IP is suggested. If the router used support
static DHCP, then DHCP can also be used as long as the IP will NOT change after the router and device
reboot.
Assume the user already has a home computer network or LAN in the office and no SIP server or proxy
involved in such solution. If any SIP server or Proxy involved, the setting will be different although the principle
is similar.
Following is the configuration for the equipment involved. We recommend user to use the default setting and
ONLY change the parameters mentioned before. For used device, a factory reset is required to make the
application running smoothly.
Figure 0: Application Network Schema
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1. HT-503 Scenario
The HT503 is the key device here to connect the IP to PSTN world. The motion trigged alarm from surveillance
camera is converted to a call sent out via HT503 to the user desired PSTN number, like cell phone.
User will hear siren when receiving the call. If email is configured in the surveillance device, a snapshot JPEG
image will be sent to user configured email address.
User can immediately check back to see whether this is a true alarm by taking following actions:
1) Using browser (via Smartphone or PC) to check the snapshot of the camera (Smartphone) or live
video stream (PC).*
2) Call back via the same PSTN number to deterrent if speaker is connected to the camera.
3) Call law enforcement for help if required. (no false alarm now)
* Necessary configurations required in the router, like port forwarding, or DDNS service subscription.
Adjust and configure only following settings mentioned below and leave all other field using default setting.
Static IP is required in such application. User can follow HT503 user manual by using analogue phone and the
built-in IVR of HT503 to key in IP address manually.
When PSTN line connected to the LINE port of the HT503, the status page should show as below (Figure 1-1).
The FXO port will show “Idle” meaning the line is ready to calls.
Figure 1-1: HT503 Status Page
Below (Figure 1-2) is the sample Static IP configuration in the “BASIC SETTINGS” tag of HT503. User can use
DHCP to get IP and change to static IP (if the router does not support Static DHCP) or follow user manual to
use analogue phone and IVR to key in IP.
NOTE:
Make sure NO IP DUPLICATION in the network when using static IP otherwise none will work.
In this example setup, the IP address is as following:
HT503: 192.168.1.31 (WAN port IP, connect to one of the Router’s LAN ports)
GS Surveillance Box: 192.168.1.30
Router: 192.168.1.1
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Figure 1-2: HT503 IP Configuration
Below (Figure 1-3) is the alarm call related configuration:
Unconditional Call Forward to PSTN: This is the place to fill in the number alarm call should be sent to
(usually cell phone number). Fill in with exactly the same digits when dialing with that line using
analogue phone, including dial prefix, area code, etc, in required by the PSTN carrier.
PIN for PSTN-to-VoIP Calls: This is optional, if user want to call back and having speaker system
connected to the camera, here is the PIN required to prevent any calls hit the system.
Unconditional Call Forward to VoIP: The SIP Server field has to be the IP of the surveillance device,
with port 5060, see below.
Figure 1-3: HT503 Alarm Call Number Setting
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Figure 1-4: HT503 FXO Port Configuration
Below (Figure 1-4) is the FXO Port related configuration. Please configure only the mentioned parameters and
do not change and leave all other parameters as default:
Account Active: Yes
SIP User ID: Use any digits you want. HT503 just need some digits here to send to surveillance
box therefore you can put ANY digits here. Here “110” is used as example.
SIP Registration: NO
This is very important as there is NO SIP Server involved and we just manipulate the IP of each other
device to make them work with each other.
Outgoing Call w/o Registration: YES
This is important also because NO SIP Server therefore no credentials involved here. The application
is assumed in a secure and trusted LAN environment.
Local SIP Port: 5062
This is the port HT503 FXO port will listen to.
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