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CubeOver
Level 3: Gumshoe

Velocity and ISDN S0

Hello All

could someone clarify to me what is Telstra Velocity?

What ITU.T protocols are run on the fiber? What device is used for ONT and what it does exactly on the protocol level?

I have called Telstra Smart Community and I was "told there are up to 4 phone ports on the ONT box" and "we can only provide Velocity in your area", but I have a requirement to have ISDN S0 line in the office in order to comply with our global business requirements for fixed phones.

I cannot stack one to other myself - would you enlighten me what is Velocity exactly, and whether Telstra can provide ISDN S0 to Rowville VIC 3178.

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4 REPLIES 4
Telstra (Retired)
Telstra (Retired)

Re: Velocity and ISDN S0

CubeOver

 

I have been able to find the following information regarding the Velocity service:

 

 
ITU-T = H.248
 
Equipment used depends on location:
- Customers in South Brisban Exchange, will have an Internal Alcatel ONT that has 2 voice ports.
- All other services will have an Alcatel External ONT, with 4 voice ports
 
The service is considered to be VoIP (Voice over Internet Protocol) however is still delivered to a standard PSTN phone via the ONT
 
I am unable to find any information on ISDN SO.
 

 

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CubeOver
Level 3: Gumshoe

Re: Velocity and ISDN S0

Thanks Shelley

I understand that ITU-T H.248 describes the way calls are provided to subscribers (separate signalling and voice curcuits/equipment).

 

My question was about the lower-level protocol that sits directly on the fiber going to customer premises, on OSI Level 2.

Is it Ethernet 802.3 or something else (SDLC, ATM, ISDN, Frame Relay)?

 

In other words, is Velocity a MetroEthernet network with IP on top or what?

Telstra (Retired)
Telstra (Retired)

Re: Velocity and ISDN S0

Hey CubeOver, 

 

I believe it is Ethernet 802.3;

 

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All moderation actions are supported by the CrowdSupport Community Guidelines

CubeOver
Level 3: Gumshoe

Re: Velocity and ISDN S0

Hi All

just for the record, the Telstra Velocity is an SDH over the fibre network, compliant ITU-T G.707, G.708.

http://everything.explained.at/Synchronous_optical_networking/

It runs IP/Ethernet on top, of course.

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