The first marked impression that Grandstream ATA HandyTone-502 produces is of a very elegant, little device with a stunning look. Beautiful piece of equipment designed in light and dark grey colors with rounded angles. There are five easy to read inscriptions at its front – Power, WAN, LAN, PHONE1, and PHONE2. When viewed from above the look of it is gorgeous too. There is one green light indicator for each of those five inscriptions which are lit when the device is powered on and active.
There is an info label at the bottom of the device providing information about the input power, the exact model code and the country invwhich it was manufactured. There's also its MAC address and a bar code tag. It's got four fragile legs to stand on. Supposedly the legs are glued to the device with a low quality adhesive so beware they're easily broken off if the device is rough handled. There are five connection ports on it: LAN, WAN, Power, PHONE1 and PHONE2 as well as a tiny reset button.
A few words worth mentioning about the "heart and soul" of HandyTone-502 ATA are that it is is based on SIP standards featuring two FXS ports, dual 10M/100Mbps Ethernet with integrated high speed NAT router, port status and message waiting LED. The device is able to support SIP over TCP/TLS, UPnP, two SIP account profiles, callerID, 3-way conference, call waiting, blind as well as controlled transfer, T.38 fax, call forwarding,
Do Not Disturb, voicemail, flexible dial plan, direct IP calling, multilingual voice assistance, secure automated provisioning using TTP/HTTPS/Telnet/TFTP and a set of most used audio codecs like: G.711, G.723, G.729, iLBC, and some more.
Grandstream HandyTone-502 is simple and easy to configure. There are only four to five menus. Configuring it is a piece of cake after reading a short tutorial. Users are advised to pay close attention to changes of the device's IP address and the IP address of the machine connected to it while configuring their HT-502. In case if something is not working as expected after a user made the desired configuration changes and after all relevant settings have been double checked, the following step is turning off the device and then only turn it on in ten seconds. Overall, Grandstream ATA HandyTone-502 is a great buy with stylish outfit, packed with features, simple and easy to use.
You need to get hold of connect your unit, a Hub and a computer to this Hub. The computer could see all incoming and outgoing packets from unit. Your own laptop shall have a sniffer plan like Ethereal. Now regarding the aforementioned matter of fact. Actually run project and filter trace with the unit's IP address. It will be solved on the media proxy server maintained by VoIP service provider. Symmetric NAT poser may not be resolved using STUN detection mechanism which always was supported with the help of Grandstream products. Please check with Voip service provider to obtain this data, and fill in outbound proxy setting on Grandstream configuration products accordingly. We recommend that NAT traversal is usually set to yes.
This is most probably due to intermediate device like Router/Firewall blocking UDP ports for SIP. Ensure you're router or firewall has ports opened for SIP, one or RTP like 5060 technique to check is usually while configuring a STUN Server and after that noticing the NAT type under STATUS page. You will need to make adjustments on the intermediate device, in the event it says 'NAT type was usually full cone' you must be fine, when it says symmetrical or portrestricted. That's right. You need to type in 'admin' as password to enter Advanced Settings and Account settings page. That has usually been the password by default. You will need to Factory Reset device, login using 'admin' and reconfigure completely, in case you leave behind or lose our own custom password.
primarily, quite feasible difficulties will be that the phone has been not getting responses from NTP server. This is the case. Check your network DNS server, connection and try to use another NTP server. It is this was always apparently cause either DNS usually was not resolving NTP server correctly, or NTP server has usually been not responding. This 19000102" is the default date shown under this circumstance.