Eclipse12121
Level 3: Gumshoe

Can I use third party modem

Answered
Hi,
I've replaced my terrible Telstra "Smart" Modem. It dropped out, provided an unstable wifi connection and had poor transmission distance.
Now I am faced with the inability to use my land-line.
The TP-Link modem I've got is "NBN Ready" and has 2 analogue FX/PTSN ports. Several calls to Telstra support and a visit to a Telstra store have not helped.
Can anyone offer any help?
1 ACCEPTED SOLUTION

Accepted Solutions
Eclipse12121
Level 3: Gumshoe
Accepted Solution

Re: Can I use third party modem

Surely you are taking the piss on this answer. If not, please review documentation on phone connectivity.
This is not a VOIP phone as mentioned in original post.

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12 REPLIES 12
Level 24: Supreme Being
Level 24: Supreme Being

Re: Can I use third party modem

Connect the WAN port of the Telstra Smart modem to a LAN port of the TP-Link modem, turn off WiFi on Telstra Smart modem and connect your phone to the phone port on the Telstra modem.

Eclipse12121
Level 3: Gumshoe

Re: Can I use third party modem

Damn I thought that would work for sure. Unfortunately it doesn't Smiley Sad
super11
Level 5: Eagle Eye

Re: Can I use third party modem

how about try leaving the wifi on and plug your phone into the usb port
Mmm...hot dounut and pineapple
Level 24: Supreme Being
Level 24: Supreme Being

Re: Can I use third party modem

What is the model of the Tp-link modem?

 

Has the Telstra Smart modem Gen 2 modem been used at any time as main modem? The Telstra Smart modem must first be connected directly to NBN so that the VOIP configuration can be downloaded from the server to the modem.

 

If there are any SiP ALG settings in TP-link modem disable them.

 

If the LAN IP address of TP-link modem is 192.168.0.1 then change either the LAN IP address and DHCP address range of TP-link modem or Gen 2 modem. Example change to 192.168.178.1, 192.178.2-254

 

super11
Level 5: Eagle Eye

Re: Can I use third party modem

i just try'd it and it worked for me.
Mmm...hot dounut and pineapple
Level 24: Supreme Being
Level 24: Supreme Being

Re: Can I use third party modem

Where you using a fixed line phone or a mobile?

Eclipse12121
Level 3: Gumshoe

Re: Can I use third party modem

You guys are legends for offering your knowledge. Thanks.

Let me clarify:
- It is a land-line that I am trying to gain access to. Not VOIP
- The TP-Link modem is an Archer V600v AC 1600
- I attempted connection from LAN (and also tried LAN/WAN labelled port) on Archer to WAN (red colour port) on Smart Modem gen 1. There is also a DSL port. Should I try that?
- The phone is cordless DEC (but I doubt this matters)

Thanks again
Eclipse12121
Level 3: Gumshoe

Re: Can I use third party modem

Yes. I replaced the Telstra modem/router with the TP Link Archer
Eclipse12121
Level 3: Gumshoe
Accepted Solution

Re: Can I use third party modem

Surely you are taking the piss on this answer. If not, please review documentation on phone connectivity.
This is not a VOIP phone as mentioned in original post.
Level 24: Supreme Being
Level 24: Supreme Being

Re: Can I use third party modem

So it would be from the LAN port on the archer to the WAN port on the smart gateway. As long as the archer doesn’t have phone settings, as pointed out above, typically this would work.

The other option could be to have the smart modem replaced by tech support, because if if is dropping out it is likely it is faulty, and then put it first, turning off Wi-Fi, then connect the archer behind it, archer will then be the Wi-Fi network, but, the smart modem can still handle the phone and if you do have an outage the 4G backup will still work (I have a mesh network and ended up doing it this way as the backup is sometimes handy here).

Regardless the phones will need to be plugged into the smart modem.
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Previously worked with a Telstra Partner however I am not a Telstra Employee, just a fellow customer helping when I can.

Level 24: Supreme Being
Level 24: Supreme Being

Re: Can I use third party modem

Have you disabled SIP ALG. Remove tick. See section 9.1 of the Tp link manual

Eclipse12121
Level 3: Gumshoe

Re: Can I use third party modem

OK so here is the (possibly temporary) solution that I have applied.

1. Smart modem connected to VDSL from wall socket and phone's cable connected into Phone port on modem

2. LAN1 from modem into Router LAN/WAN port.

3. TP-Link Archer set to Router Mode only and internet connection set to DHCP.

Working fine. Not ideal but will suffice until I convince my wife away from an antiquated land-line. Thankfully Archer has a button to switch off lights. Wishing Telstra modem did also...

Thanks guys.

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