Grandstream 503 manual

What should I do? Not sure if you followed the steps as you were not explicit in the explanation. While close to the UCM, did you hook up a wired connection? Did you factory reset, which would have turned off the Wi-FI by default as well as returned the settings to their default values? Is the IP of the phone in the whitelist just to be certain that the IP is not getting blacklisted? Can you ping it and if so, what is the response time?

I have one sitting about 3 ft from me at present and when I ping it the response is less than 1ms. Only one time it unregistered. After that I factory reset.

Once I factory reset, it restarted and when restarted the phone automatically registered to SIP server but all other settings are cleared and phone is working fine. I dont know how it get registered after I reset. Then I tried to upgrade the firmware but I get File signature error. Is there any way to check this unregistering issue by checking logs or something?

Here I do checking by physically going frequently and try to make call and check. Hello, Thanks for the reply. I can see one created with address I reset the phone and tried with factory default settings.

Looks good and not getting unregistered since morning but need to make sure it is fixed Can you ping it and if so, what is the response time? Zero config is under Value added features. It allows you to set up a template that can be used to assist in the configuration of phones for those settings that would otherwise need to be done manually. You can set up a template by the model, establish the settings you want and then apply these to the applicable phones.

It is a time saver. Call Waiting Call Transfer Blind Transfer Attended Transfer Forward Calls to VoIP One Stage Dialing Fax Support Configuring HT through Voice Prompt Configuring HT with Web Browser Access the Web Configuration Menu Saving the Configuration Changes Rebooting from Remote Configuration through a Central Server Configuration File Download Firmware and Configuration File Prefix and Postfix Managing Firmware and Configuration File Download Figure 1: Connecting the HT Figure 2: Interconnection Diagram of the HT Table 1: Definitions of the HT Connectors Table 3: HT Technical Specifications Table 4: HT Hardware Specification Table 7: Status Page Table 8: Basic Settings Table 9: Advanced Settings The HT combines a sleek design with the latest technology to offer more advanced telephony features and significantly better integrated router performance than its predecessor — the HT This HT is very easy to manage and configure, and is specifically designed to be an easy to use and affordable VoIP solution for both the residential user and the remote user.

This document is subject to changes without notice. The HT power adaptor is compliant with UL standard. Only use the universal power adapter provided with the HT package.

If you purchased your HT from a reseller, please contact them for replacement, repair or refund. Grandstream reserves the right to remedy warranty policy without prior notification. Caution: Changes or modifications to this product not expressly approved by Grandstream, or operation of this product in any way other than as detailed by this User Manual, could avoid your manufacturer warranty.

The HT is designed for easy configuration and easy installation. Configure the HT following the directions in the Configuration section of this manual. Insert a standard RJ11 telephone cable into the LINE port and connect the other end of the telephone cable to a wall jack.

Insert the Ethernet cable into the WAN port of HT and connect the other end of the Ethernet cable to an uplink port a router or a modem, etc. Insert the power adapter into the HT and connect it to a wall outlet.

Support device configuration via built-in IVR, Web browser or central configuration file. Pass-through pending , Fax Data pump V. Output: 12VDC, 0. HT has a built-in voice prompt menu for simple device configuration.

The voice prompt menu is designed for the FXS port only. You need. Upgrade protocol for firmware and configuration update. Firmware upgrade mode. Once all of the digits are collected, the input will be processed. Please check with your VoIP service provider for this information. Press or wait for 4 seconds. Enter the IP address using format ex. Enter the target IP address using same format as above. Note: NO dial tone will be played between step 1 and 2. In this case, the default destination port is used if no port is specified.

If the call waiting feature is enabled, the user will hear a special stutter tone if there is another call on the line. Press the flash button to place the current party on hold and switch to the other call.

Pressing the flash button toggles between two active calls.