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BDFL - Memuneh
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  # 443577 26-Feb-2011 09:01
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richard1088:

I am using internet.telecom.co.nz, and it assigns a routable IP address.

This still does not seem like a network issue. If Telecom were dropping ACKS, why would they not drop ACKS from me when I am calling other, non "08xx" numbers?



From the horse's mouth: http://www.geekzone.co.nz/NealR/6460

"internet.telecom.co.nz: Internet access with fire walling to block unsolicited traffic from Internet."

"direct.telecom.co.nz: Allows uninitiated traffic from the Internet."

You should at least try it - perhaps fix the issue maverick is pointing out?

Also, as a reminder to EVERYONE. Always give all the information, regardless of what you think is important or not. Even your provider is important. Even the colour of your shirt while doing the tests.











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  # 443578 26-Feb-2011 09:07
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I just tried direct.telecom.co.nz, as the APN, both on the router and directly on the MAC.

A call to 082210 is drop after 4-6 seconds. 

 
 
 
 


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  # 443579 26-Feb-2011 09:11
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richard1088: I just tried direct.telecom.co.nz, as the APN, both on the router and directly on the MAC.

A call to 082210 is drop after 4-6 seconds. 


The issue you are experiecing has been discussed on here in the past and is a known XT issue. As Maverick says it's an issue with XT with calls that are answered immediately. Signalling is lost which casues the SIP timer to expire and drop the call.



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  # 443582 26-Feb-2011 09:22
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Ok thanks

I will wait until my Orcon line is ready and try then.

Although it also does happens with 08xx number that ring for a bit.

It's the 08 ness which is the deciding factor

Cheers

Richard

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  # 443591 26-Feb-2011 09:49
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richard1088: Ok thanks

I will wait until my Orcon line is ready and try then.

Although it also does happens with 08xx number that ring for a bit.

It's the 08 ness which is the deciding factor

Cheers

Richard


No it's not, voicemail answers straight away even if you heard ringing, remember you also dialed 9503000, same issue. The explanation I have given you is the the issue, on this I will bet my reputation( lousy as it is :) )




Yes I am a employee of WxC (My Profile) ... but I do have my own opinions as well Wink

             

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  # 443613 26-Feb-2011 11:26
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Bingo.

Maveric - your reputation is secure. Thanks very much for your support, and others also.

I just switched my cellphone off, and called it. It kicked straight into voicemail, and then disconnected after 4 seconds.

To satisfy my curiosity - why would a network-layer issue affect essentially an application layer function? SIP messages are just ASCII message over UDP port 5060, right?

In order for Telecom XT to throw away the client ACK messages, and faithfully deliver others, that would mean that Telecom is doing some deep packet inspection on the SIP protocol dialogue. Which frankly is very naughty and rude.

I suppose my question is, what exactly is the XT network doing?

Thanks again for the support and input all!

Regards

Richard


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  # 443621 26-Feb-2011 12:07
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richard1088:

In order for Telecom XT to throw away the client ACK messages, and faithfully deliver others, that would mean that Telecom is doing some deep packet inspection on the SIP protocol dialogue. Which frankly is very naughty and rude.



There are various reasons why such things can occur, including packet loss during WCDMA state transitions which seems to be the likely cause of this issue.

I did some testing last year when this same issue was raised on here and found this to be the likely cause of the issue as the phone moved from idling in 3G to HSDPA mode. If the call is answered after a period of ringing the transition to HSDPA has already typically occured, no packet loss happens, and the call connects succesfully. Make a call that is answered immediately and some UDP packet loss seems to exist during this state transition. No TCP packet loss seems to occur during these transitions as the packets are presumably being resent.


 
 
 
 


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  # 443623 26-Feb-2011 12:20
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wheww lucky for me, I was going to bet the house on it ... but the wife called me an idiot




Yes I am a employee of WxC (My Profile) ... but I do have my own opinions as well Wink

             

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  # 444671 2-Mar-2011 08:40
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@Maverick, did you ever chat to your Telecom contact regarding this issue?

Maybe we should start a new thread "Telecom fix your XT network" - reason for this is in light of the rural broadband initiative. With Telecom / Vodafone looking to play a key role in this, don't you think any network that can be used for supplying rural broadband SHOULD support VoIP?




Chorus has spent $1.4 billion on making their xDSL broadband network faster and even more now as they are upgrading their rural Conklins. If your still stuck on ADSL or VDSL, why not spend $195 on a master filter install to make sure you are getting the most out of your connection?
I install - Naked DSL, DSL Master Splitters, VoIP, data cabling and general computer support for home and small business.
Rural Broadband RBI installer for Ultimate Broadband and Full Flavour

 

Need help in Auckland, Waikato or BoP? Click my email button, or email me direct: [my user name] at geekzonemail dot com




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  # 444676 2-Mar-2011 08:56
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For completeness, I got my Orcon naked DSL connection yesterday.

0800 numbers and 082210 work fine.

Thanks guys!

 

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  # 444678 2-Mar-2011 09:01
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coffeebaron: @Maverick, did you ever chat to your Telecom contact regarding this issue?

Maybe we should start a new thread "Telecom fix your XT network" - reason for this is in light of the rural broadband initiative. With Telecom / Vodafone looking to play a key role in this, don't you think any network that can be used for supplying rural broadband SHOULD support VoIP?



No we havn't as yet, VOIP is not supported and activly frowned upon over the Cellular network I believe haven't checked their terms and conditions in a while, it is definatley an issue I'm sure the Telcom engineers will be interested in as it does show an underlying issue with the working of the XT modems / network that is highlighted by this fault, it mayhave an impact on other types of services.   


If anyone from XT reads this and wants to know more or even a test account to see the issue, feel free to drop me a line .. Wink  




Yes I am a employee of WxC (My Profile) ... but I do have my own opinions as well Wink

             

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  # 444679 2-Mar-2011 09:02
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richard1088: For completeness, I got my Orcon naked DSL connection yesterday.

0800 numbers and 082210 work fine.

Thanks guys!

 



I knew I should have bet the house on this ... Innocent , good to hear all is working now 




Yes I am a employee of WxC (My Profile) ... but I do have my own opinions as well Wink

             

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  # 444681 2-Mar-2011 09:08
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maverick: No we havn't as yet, VOIP is not supported and activly frowned upon over the Cellular network I believe haven't checked their terms and conditions in a while,  


Yes, I believe this is the case still, but I think this is something that now needs to change, especially if their mobile network has a part to play in the government subsidised RBI.
  




Chorus has spent $1.4 billion on making their xDSL broadband network faster and even more now as they are upgrading their rural Conklins. If your still stuck on ADSL or VDSL, why not spend $195 on a master filter install to make sure you are getting the most out of your connection?
I install - Naked DSL, DSL Master Splitters, VoIP, data cabling and general computer support for home and small business.
Rural Broadband RBI installer for Ultimate Broadband and Full Flavour

 

Need help in Auckland, Waikato or BoP? Click my email button, or email me direct: [my user name] at geekzonemail dot com


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  # 444682 2-Mar-2011 09:11
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Couldn't agree more and I am picking this will change in time , most likely when they have a service they themselves can deliver over and with so many changes going on in our industry you never know what will happen next....




Yes I am a employee of WxC (My Profile) ... but I do have my own opinions as well Wink

             

https://www.facebook.com/wxccommunications

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  # 444688 2-Mar-2011 09:32
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Chorus has spent $1.4 billion on making their xDSL broadband network faster and even more now as they are upgrading their rural Conklins. If your still stuck on ADSL or VDSL, why not spend $195 on a master filter install to make sure you are getting the most out of your connection?
I install - Naked DSL, DSL Master Splitters, VoIP, data cabling and general computer support for home and small business.
Rural Broadband RBI installer for Ultimate Broadband and Full Flavour

 

Need help in Auckland, Waikato or BoP? Click my email button, or email me direct: [my user name] at geekzonemail dot com


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