Due to the cessation of landline telephone service in the UK, we have been asked to check if a device like Grandstream HT802 which is a 2 phone analog adaptor (ATA) for VOIP can be used for Comfort dialing out and dialing in.
This is the Grandtream HT802 web page https://www.grandstream.com/products/gateways-and-atas/analog-telephone-adaptors/product/ht802
This video is supposed to set up in 30 seconds but it only gves the connections
https://www.youtube.com/watch?v=IGLeSqCWe64
The HT802 does not work by itself. You need a VOIP server in the premises or you need a SIP Server on the internet to take your connections and calls. Not all SIP servers can do voice calls, most are for connecting between VOIP systems. I tried https://voip.ms/ whuc is a voip provider with SIP servers in several countries. They have good guides to how to set up with Grandstream HT802, see https://wiki.voip.ms/article/Getting_Started and
https://wiki.voip.ms/article/Grandstream_HandyTone_802_-_HT802 but nevertheless there are a lot of settings to enter
You need to register for a user id with one of their sip servers. After registering you have to enter the user is and SIP server address on the ATA FXS port configuration. You have to top up your account with minimum US$15.
In voip.ms after registering you need to get a "DID" number in your country which acts as a caller id for calling out to the dialled phone, as well as a number to dial in to the phone. You can Order a DID from one of the supported countries, This costs some amount of money either monthly or pay as you go per minute.
After all this was approved an the DID number was applied, I managed to make a call from my phone to the ATA phone connected to the HT802 ie the incoming call works. However outgoing calls from the attached phone to a Singapore number did not work. Calling to an Australian numbwr did not work, Calling to a US or Canadian number does work.
after checkung the voip.ms website again the warning was found:"International Routing: You can choose also the Value or Premium route. Both routes are reliable, however you're going to find better quality if you're using the Premium route. The CallerID Number is not guaranteed to work for international calls even if you use the Premium route. " Thus voip.ms is not suitable for the purpose
If you use a SIP/VOIP service in your own country this should work, but there will likely be a substantial monthly cost. Anyone who wants to conyinue testing will ave to eplore the options available
In conclusion:
After spending a few weeks on the setupThe setup for grandstream HT802 is not simple
You must find A VOIP service that can work with the Grandstream device in your country. This will incur likely a monthly payment. voip.ms does not work with International outgoing calls (where international refers to outside USA and Canada). Anyone who does this lease get support from the provider.
My recommendation
Use the UCM/GSM Module which can call out and accept incoming voice calls as well as send and receive SMS which is fully supported by Cytech. Most of our customers have gone by this route
Last edited on Thursday Feb 20th, 2025 05:09 am by slychiu
|
