Forum Discussion
VOIP on high speed gateway
Is anyone using the high speed gateway for VOIP traffic? I was told it required a firmware update to make it work. Worked fine on the LTE gateway. Any help would be appreciated.
I recently installed the Nokia 5G21. It came reconditioned from T-Mobil ISP customer service. It has firmware 1.2104.00.0286 which is the second to most recent. I have tried both the Grandstream HT702 and an Obi202 with the latest firmware update without success. I have tried the Obi202 both directly connected to the gateway and connective via an Obiwifi dongle. In all cases, T-Mobile's admin app shows the devices. Obitalk shows the device registered with the VOIP provider both through its web portal and the device admin page. The VOIP provider (Voipo.com) shows both the Grandstream and Obi devices registered. Like others, I get dial tone, but no outgoing or incoming calls. Weirdly, the message waiting indicator did work when I left myself a voice message. All these devices worked fine on my old T-Mobile 4G gateway.
I have seen much discussion of DHCP dynamic IP assignment versus static IP addressing, but do not see how to achieve that on the gateway nor why it would make a difference as the adapters are getting addresses that allow them to contact their respective web hosts.
