TelstraClear you fail.

By Steve Biddle, in , posted: 21-Nov-2008 12:59

I obviously haven't paid my TCL bill - at least that's what the recorded message says that just rang me on my mobile.

What was interesting to see was they they were attempting to set the CID so it originates from their residential credit services.. except that they have the CID wrong!

On my mobile I see 064508889977 - obviously this needs another 0 at the start so it says 0064508889977 so the call will connect. The idea of sending the CID is great, I'm just not sure how many people you will get returning the call since you're using the wrong number!

/me now wonders if I should not pay my bill next month to see how long it now takes to fix this! :-)

Edit: It appears that this issue may not infact be a TCL issue so I might owe TCL an apology! :-)

It appears that Vodafone have their switch incorrectly configured and it's not handling CID correctly.

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Comment by antoniosk, on 21-Nov-2008 19:30


What number were you called on?

Do you have a voip landline number?

Comment by LennonNZ, on 21-Nov-2008 19:41

Yes. in NZ the standard is to send the CID without the 1st leading 0 and its up to the phone to add the extra 0 to display to the user.

Its how CID on Telecom, Vodafone, Orcon, Telstra Landlines works.

but Steve said it was TelstraClear calling his mobile phone.. so TelstraClear most likely have set the A number to be an incorrect number..

Also as far as I know you cannot call tolls free (0508xxxxx) from overseas.. so if the person was overseas AND the A party was correct.. you could not call the number....(you may from a roaming cell phone??)


Author's note by sbiddle, on 21-Nov-2008 20:05

I was called on my Vodafone Mobile.

Obviously the CID needs to be set to 0064 or simply 0508 - I'm aware of the rules regarding passing of CID and the way that 0 or 00 should be added but it's obvious this isn't happening here. With a mobile network the handset also doesn't handle this, the network does.

I've also been doing some testing and I might actually owe TCL an apology - it appears it's not a TCL fail but infact possibly a big Vodafail.

It appears that Vodafone's network possibly isn't adding the 00 on to the front of numbers as it should do but infact adding a single 0. I recall in the past Vodafone also used to (and may infact still do) have their CID screwed up for international CID that originates on the Vodafone AU network as well when they call NZ.

sbiddle's profile

Steve Biddle
New Zealand

I'm an engineer who loves building solutions to solve problems.

I also love sharing my views and analysis of the tech world on this blog, along with the odd story about aviation and the travel industry.

My interests and skillset include:

*VoIP (Voice over IP). I work with various brands of hardware and PBX's on a daily basis
  -Asterisk (incl PiaF, FreePBX, Elastix)

  -xDSL deployments

*Structured cabling
  -Home/office cabling
  -Phone & Data

*Computer networking
  -Mikrotik hardware
  -WAN/LAN solutions

*Wireless solutions
  -Motel/Hotel hotspot deployments
  -Outdoor wireless deployments, both small and large scale
  -Temporary wireless deployments
*CCTV solutions
  -Analogue and IP

I'm an #avgeek who loves to travel the world (preferably in seat 1A) and stay in nice hotels.

+My views do no represent my employer. I'm sure they'll be happy to give their own if you ask them.

You can contact me here or by email at