If you’re deploying a gateway and interfacing to Telstra’s Australian “SIP Connect” SIP trunk service you’ll need to know a few values. Most of the below you’ll get from the relevant Telstra and/or gateway integration guides.
Each state and territory has its own SBC and Telstra STRONGLY prefers you reference these by their host name and use Telstra’s DNS to resolve this. Their requirement here is that you add a conditional forwarder to your corporate DNS for the “nipt.telstra.com” domain.
Domain | DNS forwarder IP |
nipt.telstra.com | 203.52.0.221 203.52.1.222 |
The above isn’t to every customer’s liking, or it’s perhaps not something they’re able to do in the required timeframe. Your alternative or temporary workaround is to take the potentially risky step of hard-coding the IP address into the gateway’s Hosts table.
Here’s a table with all of the values you need.
When you’re testing this ahead of commissioning you need to know that Telstra’s SBC address won’t respond to pings – but they’ve kindly provided a separate address that will.
SBC Hostname | SBC IP address | “Pingable” address | Media Range |
sbc-vic.nipt.telstra.com | 203.52.0.167 | 203.52.0.161 | 203.52.0.0 /24 |
sbc-nsw.nipt.telstra.com | 203.52.1.167 | 203.52.1.161 | 203.52.1.0 /24 |
sbc-wa.nipt.telstra.com | 203.52.2.167 | 203.52.2.161 | 203.52.2.160 /28 |
sbc-qld.nipt.telstra.com | 203.52.3.167 | 203.52.3.161 | 203.52.3.160 /28 |
sbc-sa.nipt.telstra.com | 203.44.43.164 | 203.44.43.161 | 203.44.43.160 /28 |
Revision History
14th December 2015: Updated to indicate Tasmania, ACT and NT are deprecated. In those states, use Victoria, NSW & SA respectively. Source: e-mail from DW, TIPT Commissioning, 11/12/15.
– G.
Looks like QLD and WA SBC IP’s have changed
203.52.2.164
203.52.2.164
ssdns1002.nipt.telstra.com
ssdns1001.nipt.telstra.com
Familiar with these ones?
No I’m not. What do they for (and perhaps as importantly, what do they resolve to)??
Hi Greig,
We have no idea. We use TIPTs in my company but manage the cubes ourselves. Recently we have had issues with Telstra NBN DOT customers phoning our TIPT service. I was doing a routine check to ensure the SBC/s were on the cube still.
ssdns1002.nipt.telstra.com -> 10.98.48.154
Host Port Flags Age Type Address(es)
ssdns1002.nipt.telstra.co None (temp, OK) 5 IP 10.98.48.154
ssdns1001.nipt.telstra.co None (temp, OK) 5 IP 10.83.148.154
sbc-qld.nipt.telstra.com None (temp, OK) 0 IP 203.52.3.164
_sip._udp.sbc-qld.nipt.te NA (temp, OK) 0 SRV 1 50 5060 sbc-qld.nipt.telstra.com
Ive asked Telstra what they are and why they are appearing.