Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.
View this topic in a long page with up to 500 replies per page Create new topic
1 | 2 
3206 posts

Uber Geek
+1 received by user: 613

Trusted

  Reply # 1439654 3-Dec-2015 01:56
Send private message

old3eyes: I hope that Spark can sort out  Now's SIP trunk offering.  Had another tech ring me today saying that they could not call a remote IVR from the new  Now trunks that he had installed.  Now is the only SIP carrier that we have tested that  uses Inband rather than RFC2833 for DTMF signaling.


I believe that was because now run many analog monitored alarm dialers over their network. I think its really impressive - though you may have found a side effect. There was a post on geekzone ~5 years ago about how someone was able to get 28k dialup to work via one of their sip trunks.




Ray Taylor
Taylor Broadband (rural hawkes bay)
www.ruralkiwi.com

There is no place like localhost
For my general guide to extending your wireless network Click Here




3206 posts

Uber Geek
+1 received by user: 613

Trusted

  Reply # 1439655 3-Dec-2015 01:59
One person supports this post
Send private message

Athlonite:

Didn't Now buy out and existing HB ISP 


You could be thinking of when Airnet changed their name to Now when they switched to primarily being a fixed line provider.




Ray Taylor
Taylor Broadband (rural hawkes bay)
www.ruralkiwi.com

There is no place like localhost
For my general guide to extending your wireless network Click Here




7828 posts

Uber Geek
+1 received by user: 782

Subscriber

  Reply # 1439675 3-Dec-2015 07:31
Send private message

raytaylor:
old3eyes: I hope that Spark can sort out  Now's SIP trunk offering.  Had another tech ring me today saying that they could not call a remote IVR from the new  Now trunks that he had installed.  Now is the only SIP carrier that we have tested that  uses Inband rather than RFC2833 for DTMF signaling.


I believe that was because now run many analog monitored alarm dialers over their network. I think its really impressive - though you may have found a side effect. There was a post on geekzone ~5 years ago about how someone was able to get 28k dialup to work via one of their sip trunks.


Maybe .  But we can get dialup to work in Sparks GVC  which use RFC..




Regards,

Old3eyes




26588 posts

Uber Geek
+1 received by user: 6087

Moderator
Trusted
Biddle Corp
Lifetime subscriber

  Reply # 1439690 3-Dec-2015 08:20
One person supports this post
Send private message

raytaylor:
old3eyes: I hope that Spark can sort out  Now's SIP trunk offering.  Had another tech ring me today saying that they could not call a remote IVR from the new  Now trunks that he had installed.  Now is the only SIP carrier that we have tested that  uses Inband rather than RFC2833 for DTMF signaling.


I believe that was because now run many analog monitored alarm dialers over their network. I think its really impressive - though you may have found a side effect. There was a post on geekzone ~5 years ago about how someone was able to get 28k dialup to work via one of their sip trunks.


Dialup and DTMF are two very different things. It is very unusual to only support inband as RFC2833 is the standard for DTMF in the SIP world. Inband is supported in addition by many SIP providers, but it's incredibly rare for this to be the only supported method due to the inaccuracy that can result, and the fact it limits codec usage as you can only use uncompressed PCM codecs.

Data becomes interesting, because alaw and ulaw used for VoIP are essentially no different to the 64k PCM channels that are used in the ISDN world. There is nothing to prevent data use over an alaw or ulaw connection, but digital processing features such as jitter buffers and echo cancellation which are the norm on most ATA's play havoc with a modem, particularly as the speed goes up. EFTPOS at 9600 will work fine over VoIP.



1 | 2 
View this topic in a long page with up to 500 replies per page Create new topic

Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Microsoft Dynamics 365 Business Central launches
Posted 10-Jul-2018 10:40


Spark completes first milestone in voice platform upgrade
Posted 10-Jul-2018 09:36


Microsoft ices heated developers
Posted 6-Jul-2018 20:16


PB Technologies charged for its extended warranties and warned for bait advertising
Posted 3-Jul-2018 15:45


Almost 20,000 people claim credits from Spark
Posted 29-Jun-2018 10:40


Cove sells NZ's first insurance policy via chatbot
Posted 25-Jun-2018 10:04


N4L helping TAKA Trust bridge the digital divide for Lower Hutt students
Posted 18-Jun-2018 13:08


Winners Announced for 2018 CIO Awards
Posted 18-Jun-2018 13:03


Logitech Rally sets new standard for USB-connected video conference cameras
Posted 18-Jun-2018 09:27


Russell Stanners steps down as Vodafone NZ CEO
Posted 12-Jun-2018 09:13


Intergen recognised as 2018 Microsoft Country Partner of the Year for New Zealand
Posted 12-Jun-2018 08:00


Finalists Announced For Microsoft NZ Partner Awards
Posted 6-Jun-2018 15:12


Vocus Group and Vodafone announce joint venture to accelerate fibre innovation
Posted 5-Jun-2018 10:52


Kogan.com to launch Kogan Mobile in New Zealand
Posted 4-Jun-2018 14:34


Enable doubles fibre broadband speeds for its most popular wholesale service in Christchurch
Posted 2-Jun-2018 20:07



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.