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Topic # 243340 7-Dec-2018 00:10
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I'm on Vodafone fixed landline & fibre broadband service plan. the modem is vodafone ultra hub. connecting the home phone to one of the voip port in the modem to get the landline phone service through voip. login into the modem web config page, check the phone service configuration, it is sip based voip service.


is it ok to connect a sip phone (not home phone) to the modem (e.g. to the LAN port), and configure the sip phone with the information of the modem phone configuration, to get phone service through voip?


there is only one landline number under this plan. in order not sharing the same landline number when people living here make outbound calls, can set up a PBX server and/or configure vlan to achieve this purpose. has anyone get this working already or have better approach?


thank you very much.



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  Reply # 2140892 7-Dec-2018 07:20
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The only supported configuration is plugging your analogue phone into the FXS ports on the back of the router.



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  Reply # 2140901 7-Dec-2018 08:03
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this depends on the restriction/limitation on the vodafone side also. if they want to prevent the customers from plugging the sip phones into their modem for voip phone service, then this won't be available (but this might still be a way to hack around). for voip technology itself, it should work.


yes the home/analogue phone does work, so install analogue telephone card onto a computer server in which a PBX server is configured, then can provision voip phone service to multiple rooms in the same premise/office through the NIC of this computer server, and this is handled/controlled in the customer side, not limited/restricted in the vodafone side. in this case, it only needs one paid landline number to provision "unshared" phone services to multiple people in the same location.


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  Reply # 2140915 7-Dec-2018 09:04
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Vodafone do not give out your SIP credentials. It's saved in your routers config, the only way to get it is to extract it from there. Support won't budge an inch if you try to ask them for it.



You can do whatever with the analogue signal from the VF supplied router.

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