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Solution

‘Call Failed’ error when making calls

Retired-George
Moderator (Retired)
Moderator (Retired)

This issue has the following symptoms:

 

For version 1 Sure Signal (the one with four lights on the front):

  • Lights one, two and four are all solid
  • Incoming calls, texts and internet all work correctly
  • When making a call on a registered phone, the error ‘Call Failed’ or similar is displayed

 

For version 2 Sure Signal (the one with 3 lights on the front):

  • The power and system lights are both solid
  • Incoming calls, texts and internet all work correctly
  • When making a call on a registered phone, the error ‘Call Failed’ or similar is displayed 

 

For version 3 Sure Signal (the plug in version):

  • The power, internet and service lights are all solid and the in use light is either solid or flashing
  • Incoming calls, texts and internet all work correctly
  • When making a call on a registered phone, the error ‘Call Failed’ or similar is displayed


Troubleshooting steps:

Check for planned maintenance:

Planned maintenance can cause periods of downtime, so check the forum for any planned maintenance. If there is, this will be announced at the top of the Sure Signal forum.

 

Reset your Sure Signal:

 

For versions 1 and 2:

  1. Hold in the reset button until all lights go solid
  2. Pull the power lead out with the reset button still pushed in
  3. Continue to hold down the reset button and reconnect the power lead
  4. Wait for all lights to come on and then release the reset button

 

For version 3:

  1. Locate the button on the base of the box next to the Ethernet ports.
  2. Press and hold the button for approximately 30 seconds.
  3. Once the lights come back on, release the button.

 

The Sure Signal will be back online in around 1 hour.

 

If you’re still unable to make calls, there may be a compatibility issue with your Sure Signal and your location information (also known as SAC/LAC compatibility).

A SAC (Service Area Code) connects to a mast and is used to determine the rough location of where a call’s made. It's needed for the emergency services to know where a call was made from.

 

As a Sure Signal can be used anywhere in the country, it doesn't automatically come with a SAC. The SAC is generated based on the postcode you enter when registering your Sure Signal and it's created based on the nearest cell to your location.

In order for calls to be made, they must go over an MSC (Mobile Switching Centre). If the MSC doesn't hold the SAC for your area on its database, the call will fail.

 

The MSCs should now hold all SACs for Sure Signal calls. For anyone who is still affected please post in this thread and we can look into it further.

 

Thanks,

 

Jenny

686 REPLIES 686

I like everybody else am unable to make or receive calls today.

i have followed the above posted instructions and still have the same issue.

please can we have an update as soon as possible

Come on Vodafone - sort this out!  You can see that there is a big problem going on here affecting many users - all of whom have paid for their phone usage AND the Sure Signal in the hope that it would solve their coverage issues.

I, like many, rely on my mobile for working from home and this kind of issue is not acceptable.  Just think of the damage to reputations that the O2 and Blackberry outage has done.

 

Please update us on what can/will be done to sort this out.

Have same problem tried resetting but still no good

Same problem here ME9 - can't make outgoing calls.  All incoming calls go to voicemail, but I can't access voicemail.  Texts work fine.

 

I have an I phone and a Nokia Lumia bothe registered to the sure signal box and the same problem with them both.

 

This is obviously a big problem covering a large area and not responding to reset/reboot

 

Please sort this out - I work from home and this is beyond frustrating. 

 

I look forward to an honest answer confiming that there is a problem and a genuine solution.

 

Thanks!

 

 

Same problem here. 

 

Power light and @ light on, 3 and 4 off.

 

No outgoing call ability and incoming calls cut off after less than a second.

 

VF - please sort this - it is getting tedious.

 

s/n 21228246845

Same problems here and also a reboot does not fix

I have same problem,  done all the resets possible contacted vf (via bt phone costing me a small fortune) as I had no mobile working, for them to tell me it WILL be working in 2 to 3 hours. Personally think I was fobbed off and now getting cheesed of

Same issue here, most frustrating - how do I get this issue fixed Vodafone? (having tried all reboot options suggested)

Same issue here too; factory reset etc. does nothing.

 

WHY ARE VODAFONE NOT POSTING ON HERE TO SAY THAT A) THEY KNOW ABOUT THE ISSUE, AND B) WHEN IT WILL BE FIXED?

 

Pretty poor.

Any news on this, switched mine off now