Training:Trunks - Revision history

Mike Lunn at 16:26, 8 December 2021

2021-12-08T16:26:26Z

← Older revision		Revision as of 16:26, 8 December 2021
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	3.) Traditional copper lines or use of an analog gateway. This is best if using an analog line, but will not provide the excellent results as the two methods above.		3.) Traditional copper lines or use of an analog gateway. This is best if using an analog line, but will not provide the excellent results as the two methods above.
			[[Category:Training]]

Nick Branica: /* PRI */

2017-08-21T17:26:15Z

PRI

← Older revision		Revision as of 17:26, 21 August 2017
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	IPitomy recommends the use of ~~PRI~~ as the “go-to” interface to the PSTN. If your customer ~~demands the best performance with high-functionality~~, PRI is ~~the only choice~~. PRI circuits have the added advantage of being a guaranteed service – this means that although the bandwidth is limited (by todays norm) to 1.54Mbps, it will be guaranteed at that level from the service provider. This is not the case with other bandwidth service providers.		IPitomy recommends the use of SIP as the “go-to” interface to the PSTN. If your customer requires use of a PRI, a PRI option is available . PRI circuits have the added advantage of being a guaranteed service – this means that although the bandwidth is limited (by todays norm) to 1.54Mbps, it will be guaranteed at that level from the service provider. This is not the case with other bandwidth service providers.

	PRI in North America is 23 - "B" (Bearer) channels and 1 - "D" (Delta [data]) channel.		PRI in North America is 23 - "B" (Bearer) channels and 1 - "D" (Delta [data]) channel.
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	*Some providers do not allow use of some of the features that are available to an IP PBX user. Most noted restriction is:		*Some providers do not allow use of some of the features that are available to an IP PBX user. Most noted restriction is:
	**Custom Caller ID on outbound calls		**Custom Caller ID on outbound calls
			**Providers can be slow to react to network outages

Nick Branica: /* FAX */

2017-08-21T15:45:01Z

FAX

← Older revision		Revision as of 15:45, 21 August 2017
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	There are three types of FAX that can be used with SIP systems:		There are three types of FAX that can be used with SIP systems:

	1.) FAX over the Internet. Using a traditional FAX machine, a box is installed with an analog port to connect to the FAX machine like a phone line. A LAN connection is included so the FAX can be sent using a reliable transmission method to assure that it arrives at the destination without any errors. Inbound FAX works the same with highly reliable servers that send the ~~FAX~~ to the FAX machine without errors. When the customer prefers to implement fax using a FAX machine, this is the preferred method. This service also includes the digital FAX benefits listed below. IPitomy sells this service and can be purchased directly from IPitomy.		1.) FAX over the Internet. Using a traditional FAX machine, a box is installed with an analog port to connect to the FAX machine like a phone line. A LAN connection is included so the FAX can be sent using a reliable transmission method to assure that it arrives at the destination without any errors. Inbound FAX works the same with highly reliable servers that send the Document to the FAX machine without errors. When the customer prefers to implement fax using a FAX machine, this is the preferred method. This service also includes the digital FAX benefits listed below. IPitomy sells this service and can be purchased directly from IPitomy.

	2.) Digital FAX. Digital FAX allows incoming FAX to arrive as an email in an Email inbox. It is a reliable FAX over Internet process. Outbound Fax documents can be sent from the desktop using a driver that installs on the user PC that acts similar to a printer driver. When a customer is comfortable using a scanner of created documents for outbound faxes, this is a highly reliable method and is less expensive than having the FAX over Internet device plugged into the FAX machine. This FAX Service can be purchased through IPitomy.		2.) Digital FAX. Digital FAX allows incoming FAX to arrive as an email in an Email inbox. It is a reliable FAX over Internet process. Outbound Fax documents can be sent from the desktop using a driver that installs on the user PC that acts similar to a printer driver. When a customer is comfortable using a scanner of created documents for outbound faxes, this is a highly reliable method and is less expensive than having the FAX over Internet device plugged into the FAX machine. This FAX Service can be purchased through IPitomy.

	3.) Traditional copper lines or use of an analog gateway. This is best if using an analog line, but will not provide the excellent results as the two methods above.		3.) Traditional copper lines or use of an analog gateway. This is best if using an analog line, but will not provide the excellent results as the two methods above.

Nick Branica: /* FAX */

2017-08-21T15:25:58Z

FAX

← Older revision		Revision as of 15:25, 21 August 2017
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	1.) FAX over the Internet. Using a traditional FAX machine, a box is installed with an analog port to connect to the FAX machine like a phone line. A LAN connection is included so the FAX can be sent using a reliable transmission method to assure that it arrives at the destination without any errors. Inbound FAX works the same with highly reliable servers that send the FAX to the FAX machine without errors. When the customer prefers to implement fax using a FAX machine, this is the preferred method. This service also includes the digital FAX benefits listed below. IPitomy sells this service and can be purchased directly from IPitomy.		1.) FAX over the Internet. Using a traditional FAX machine, a box is installed with an analog port to connect to the FAX machine like a phone line. A LAN connection is included so the FAX can be sent using a reliable transmission method to assure that it arrives at the destination without any errors. Inbound FAX works the same with highly reliable servers that send the FAX to the FAX machine without errors. When the customer prefers to implement fax using a FAX machine, this is the preferred method. This service also includes the digital FAX benefits listed below. IPitomy sells this service and can be purchased directly from IPitomy.

	2.) Digital FAX. Digital FAX allows incoming FAX to arrive as an email in an Email inbox. It is a reliable FAX over Internet process. Outbound Fax documents can be sent from the desktop using a driver that installs on the user PC that acts similar to a printer driver. When a customer is comfortable using a scanner of created documents for outbound faxes, this is a highly reliable method and is less expensive than having the FAX over Internet device plugged into the FAX machine.		2.) Digital FAX. Digital FAX allows incoming FAX to arrive as an email in an Email inbox. It is a reliable FAX over Internet process. Outbound Fax documents can be sent from the desktop using a driver that installs on the user PC that acts similar to a printer driver. When a customer is comfortable using a scanner of created documents for outbound faxes, this is a highly reliable method and is less expensive than having the FAX over Internet device plugged into the FAX machine. This FAX Service can be purchased through IPitomy.

	3.) Traditional copper lines or use of an analog gateway. This is best if using an analog line, but will not provide the excellent results as the two methods above.		3.) Traditional copper lines or use of an analog gateway. This is best if using an analog line, but will not provide the excellent results as the two methods above.

Nick Branica: /* FAX */

2017-08-21T15:16:50Z

FAX

← Older revision		Revision as of 15:16, 21 August 2017
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	== FAX ==		== FAX ==

	~~Unfortunately there~~ was a ~~technology developed call '''facsimile''~~'. It was great when developed – ~~now it’s a '''nuisance'''. Plainly stated this technology works best on POTS lines~~.		FAX is a technology based on "modem" communication. As such, it was designed to be used with analog lines that were a copper pair extending from the Central Office to a business or residence. In today's world, the direct copper connection is more often than not replaced with a shared digital connection that is not exactly the same as the copper connection in many cases. . It was great when developed – FAX over the Internet has replaced the old fashioned copper connection as being the most reliable of FAX delivery methods.

	~~Not even PRI~~ can ~~support the use of fax as well as a POTS line because the technology was made for use on POTS lines as the transport media.~~		There are three types of FAX that can be used with SIP systems:

	~~If you think about~~ the ~~Rube Goldberg POTS line model~~, a ~~fax~~ machine ~~adds yet another layer of undesired conversion~~ to the ~~model~~. When this is ~~applied to SIP or PRI~~ the ~~over-use scenario is exasperated again~~.		1.) FAX over the Internet. Using a traditional FAX machine, a box is installed with an analog port to connect to the FAX machine like a phone line. A LAN connection is included so the FAX can be sent using a reliable transmission method to assure that it arrives at the destination without any errors. Inbound FAX works the same with highly reliable servers that send the FAX to the FAX machine without errors. When the customer prefers to implement fax using a FAX machine, this is the preferred method. This service also includes the digital FAX benefits listed below. IPitomy sells this service and can be purchased directly from IPitomy.

	~~Our recommendation for successful~~ FAX ~~deployment~~ is to ~~retain one analog circuit to be used solely~~ for ~~facsimile~~ use.		2.) Digital FAX. Digital FAX allows incoming FAX to arrive as an email in an Email inbox. It is a reliable FAX over Internet process. Outbound Fax documents can be sent from the desktop using a driver that installs on the user PC that acts similar to a printer driver. When a customer is comfortable using a scanner of created documents for outbound faxes, this is a highly reliable method and is less expensive than having the FAX over Internet device plugged into the FAX machine.

			3.) Traditional copper lines or use of an analog gateway. This is best if using an analog line, but will not provide the excellent results as the two methods above.

Mike Lunn: /* PRI */

2014-07-23T18:39:42Z

PRI

← Older revision		Revision as of 18:39, 23 July 2014
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	PRI in North America is 23 - "B" (Bearer) channels and 1 - "D" (Delta [data]) channel.		PRI in North America is 23 - "B" (Bearer) channels and 1 - "D" (Delta [data]) channel.

			NOTE: When connecting a T1/PRI to the PBX, it is advised to use individually shielded pair T1 Cabling, not Cat-5 or Cat-6. Here is a great link explaining exactly why you want to avoid category cabling.

			http://www.quabbin.com/page2027.html

	[[File:Isdnpri.gif]]		[[File:Isdnpri.gif]]

Paul Falanga at 13:57, 4 January 2013

2013-01-04T13:57:01Z

← Older revision		Revision as of 13:57, 4 January 2013
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	Analog lines in their original form were extended from the Central Office to the customer point of presence on copper wires. Today these copper wires are over-utilized by pair-gain devices used to extend and expand call capacity over the same wires. The result is multiple conversions of analog to an early digital signal using concentrators and multiplexors.		Analog lines in their original form were extended from the Central Office to the customer point of presence on copper wires. Today these copper wires are over-utilized by pair-gain devices used to extend and expand call capacity over the same wires. The result is multiple conversions of analog to an early digital signal using concentrators and multiplexors. The result is the delivery of analog service over quasi "copper" media which is at best an elaborate Rube Goldberg drawing.

	[[File:SubscriberLoopSmall.gif]]		[[File:SubscriberLoopSmall.gif]]
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	In either case the need of proper CO line conditions is paramount in achieving acceptable results. We found a very good website for preparing for connection to the PSTN using '''CO Lines''' at: [http://www.sandman.com/ www.sandman.com]		In either case the need of proper CO line conditions is paramount in achieving acceptable results. We found a very good website for preparing for connection to the PSTN using '''CO Lines''' at: [http://www.sandman.com/ www.sandman.com]

	Use the chart on this site at: [http://www.sandman.com/loop.html http://www.sandman.com/loop.html] to assure that your CO lines are within the required specifications.		Use the chart on this site at: [http://www.sandman.com/loop.html http://www.sandman.com/loop.html] to assure that your CO lines are within the required specifications.

	We know that PSTN Gateways and PSTN interface boards only perform optimally when the CO Lines are at the '''desired '''levels.		We know that PSTN Gateways and PSTN interface boards only perform optimally when the CO Lines are at the '''desired '''levels.

Paul Falanga: /* Analog Lines (loosely referred to as Analog Trunks) */

2013-01-04T13:48:55Z

Analog Lines (loosely referred to as Analog Trunks)

← Older revision		Revision as of 13:48, 4 January 2013
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	#PSTN Gateways		#PSTN Gateways

	In either case the need of proper CO line conditions is paramount in achieving acceptable results. We found a very good website for preparing for connection to the PSTN using '''CO Lines''' at:		In either case the need of proper CO line conditions is paramount in achieving acceptable results. We found a very good website for preparing for connection to the PSTN using '''CO Lines''' at: [http://www.sandman.com/ www.sandman.com]

	[http://www.sandman.com/ www.sandman.com]		Use the chart on this site at: [http://www.sandman.com/loop.html http://www.sandman.com/loop.html] to assure that your CO lines are within the required specifications.

	~~use the chart on this site at: [http://www.sandman.com/loop.html http://www.sandman.com/loop.html]~~		We know that PSTN Gateways and PSTN interface boards only perform optimally when the CO Lines are at the '''desired '''levels.

	~~to assure that your CO lines are within the required specifications.~~ We know that PSTN Gateways and PSTN interface boards only perform optimally when the CO Lines are at the '''desired '''levels.

	== Analog Line Ongoing Maintenance and Testing  ==		== Analog Line Ongoing Maintenance and Testing  ==

Paul Falanga at 21:16, 3 January 2013

2013-01-03T21:16:26Z

← Older revision		Revision as of 21:16, 3 January 2013
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	to assure that your CO lines are within the required specifications. We know that PSTN Gateways and PSTN interface boards only perform optimally when the CO Lines are at the '''desired '''levels.		to assure that your CO lines are within the required specifications. We know that PSTN Gateways and PSTN interface boards only perform optimally when the CO Lines are at the '''desired '''levels.

	== Ongoing Maintenance and ~~testing~~  ==		== Analog Line Ongoing Maintenance and Testing  ==

	IPitomy wants to make sure that you are aware, when you deploy analog "trunks" be prepared for ongoing maintenance and testing. Be ready to fill out the Sandman chart again-and-again.		IPitomy wants to make sure that you are aware, when you deploy analog "trunks" be prepared for ongoing maintenance and testing. Be ready to fill out the Sandman chart again-and-again.

Paul Falanga at 21:14, 3 January 2013

2013-01-03T21:14:36Z

← Older revision		Revision as of 21:14, 3 January 2013
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	Analog lines in their original form were extended from the ~~Branch~~ Office to the customer point of presence on copper wires. Today these copper wires are over-utilized by pair-gain devices used to extend and expand call capacity over the same wires. The result is multiple conversions of analog to an early digital signal using concentrators and multiplexors.		Analog lines in their original form were extended from the Central Office to the customer point of presence on copper wires. Today these copper wires are over-utilized by pair-gain devices used to extend and expand call capacity over the same wires. The result is multiple conversions of analog to an early digital signal using concentrators and multiplexors.

	[[File:SubscriberLoopSmall.gif]]		[[File:SubscriberLoopSmall.gif]]