I've been supplied with an Avaya VOIP phone for my home office. Allegedly it's just 'plug 'n play', but sadly it won't work with my HomeHub5.
With technical help from work we have proven that it's definitely the HomeHub causing the problem. I have read several forum posts around this particular issue so I know that I'm not alone.
Could you advise on how to fix the problem? Many thanks in advance.
Hi guys, still no news on this. Elsewhere on the forum it looks like there is a known fix, so please could one of the BT engineering team come back with a solution? Thanks!
Hi Devon_Dave and smf22.
Thanks for trying help!
I basically tethered my iPhone and used that to connect the Avaya phone to the Internet. It worked first time (albeit on a dodgy 3G signal!) for incoming and outgoing calls. It seems the HomeHub5 stops the phone communicating with our work VOIP server. NB I don't need to use VPN for this, it's supposed to be 'plug and play' (LOL!).
VoIP phones will use different traffic "streams" to the VoIP call server for registration, call signalling, audio etc. While some of those streams use TCP and others use UDP, the HH5 works like any other home router / firewall and should allow any TCP and UDP traffic out, but restrict what's allowed in.
Provided the VoIP phone makes an outgoing connection for registration etc., there should be nothing to change on the hub for it to work.
Do you know the IP address of the VoIP call server and are you able to ping or trace route to it from a PC or host on your LAN? This would at least prove IP connectivity.