Parameter: Channel Usage - Revision history

Abrassard: Updated doc after choice renaming (Highest Mapping Id -> All trunks highest timeslot)

2014-04-02T15:05:33Z

Updated doc after choice renaming (Highest Mapping Id -> All trunks highest timeslot)

Luc Morissette: Added reference to 'Line Hunting' and added external link

2013-02-08T14:57:17Z

Added reference to 'Line Hunting' and added external link

Cbilodeau: increase column width to improve visibility of channel usage

2012-12-19T18:01:33Z

increase column width to improve visibility of channel usage

Nicole Tan at 02:36, 19 December 2012

2012-12-19T02:36:34Z

Nicole Tan at 17:09, 18 December 2012

2012-12-18T17:09:13Z

Nicole Tan at 17:08, 18 December 2012

2012-12-18T17:08:23Z

Nicole Tan: Modified the description for each channel usage params to be more accurate and precise

2012-12-18T16:54:35Z

Modified the description for each channel usage params to be more accurate and precise

Nicole Tan: Changed the display style for ISUP NAP also

2012-12-18T15:58:48Z

Changed the display style for ISUP NAP also

Nicole Tan: Changed the display style for ISDN and CASR2 NAP

2012-12-17T22:09:06Z

Changed the display style for ISDN and CASR2 NAP

Nicole Tan: Added links to Create ISUP NAP

2012-12-13T21:01:31Z

Added links to Create ISUP NAP

@@ Line 16: / Line 16: @@
 For instance, if timeslot 1 is idle for 10 minutes, and timeslot 2 is idle for 5 minutes, timeslot 1 will be used. So all timeshots will be averagely occupied in a long term base.
 |-
-! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Lowest Timeslot'''<br>
+! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Per-trunk lowest timeslot'''<br>
 | Start from lowest timeslot of every trunk in the NAP and will reuse them when they are idle. The interval of reusing a circuit is 25% of all circuits of this NAP.
 For instance, if you have 24 circuits in the NAP, and you make calls one by one, then it will use cic 1-2-3-4-5-6-1-2-3-4-5-6. There is also a 5s timeout to re-sort the idle timeslot list.
@@ Line 22: / Line 22: @@
 '''Note:''' Lowest Timeslot algorithm is per-trunk. If multiple trunks in a NAP, the algorithm will try to use the available timeslot with lowest number among all trunks for the NAP.
 |-
-! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Highest Timeslot'''<br>
+! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Per-trunk highest timeslot'''<br>
 |  Start from highest timeslot of every trunk in the NAP and will reuse them when they are idle.  The interval of reusing a circuit is 25% of all circuits of this NAP.
 For instance, if you have 24 circuits in the NAP, and you make calls one by one, then it will use cic 24-23-22-21-20-19-24-23-22-21-20-19. There is also a 5s timeout to re-sort the idle timeslot list.
@@ Line 28: / Line 28: @@
 '''Note:''' Highest  Timeslot algorithm is per-trunk. If multiple trunks in a NAP, the algorithm will try to use the available timeslot with highest number among all trunks for the NAP.
 |-
-! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Lowest Mapping ID'''<br>
+! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''All-trunks lowest timeslot'''<br>
 | Start from lowest timeslot of first trunk, second lowest of first trunk, etc. Once the first trunk is full, will start using second trunk. Will reuse the channels if they are idle.<br>
 |-
-! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Highest Mapping ID'''<br>
+! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''All-trunks highest timeslot'''<br>
-| Start from highest timeslot of last trunk, second highest of last trunk, etc. Once the last trunk is full, will start using second-to-last trun. Will reuse the channels if they are idle.
+| Start from highest timeslot of last trunk, second highest of last trunk, etc. Once the last trunk is full, will start using second-to-last trun. Will reuse the channels if they are idle.<br>
 |}
@@ Line 47: / Line 49: @@
 For instance, if timeslot 1 is idle for 10 minutes, and timeslot 2 is idle for 5 minutes, timeslot 1 will be used. So all timeshots will be averagely occupied in a long term base.
 |-
-! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Lowest Timeslot'''<br>
+! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Per-trunk lowest timeslot'''<br>
 | Start from lowest timeslot of every trunk in the NAP and will reuse them when they are idle. The interval of reusing a circuit is 25% of all circuits of this NAP.
 For instance, if you have 24 circuits in the NAP, and you make calls one by one, then it will use cic 1-2-3-4-5-6-1-2-3-4-5-6. There is also a 5s timeout to re-sort the idle timeslot list.
@@ Line 53: / Line 55: @@
 '''Note:''' Lowest Timeslot algorithm is per-trunk. If multiple trunks in a NAP, the algorithm will try to use the available timeslot with lowest number among all trunks for the NAP.
 |-
-! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Highest Timeslot'''<br>
+! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Per-trunk highest timeslot'''<br>
 |  Start from highest timeslot of every trunk in the NAP and will reuse them when they are idle.  The interval of reusing a circuit is 25% of all circuits of this NAP.
 For instance, if you have 24 circuits in the NAP, and you make calls one by one, then it will use cic 24-23-22-21-20-19-24-23-22-21-20-19. There is also a 5s timeout to re-sort the idle timeslot list.
@@ Line 69: / Line 71: @@
 '''Note:''' Highest CIC is per-NAP. Timeslot with highest CICs within a NAP will be used first (no matter on which trunk they are, only CIC is looked at in that mode)
 |-
-! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Lowest Mapping ID'''<br>
+! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''All-trunks lowest timeslot'''<br>
 | Start from lowest timeslot of first trunk, second lowest of first trunk, etc. Once the first trunk is full, will start using second trunk. Will reuse the channels if they are idle.<br>
 |-
-! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Highest Mapping ID'''<br>
+! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''All-trunks highest timeslot'''<br>
-| Start from highest timeslot of last trunk, second highest of last trunk, etc. Once the last trunk is full, will start using second-to-last trun. Will reuse the channels if they are idle.
+| Start from highest timeslot of last trunk, second highest of last trunk, etc. Once the last trunk is full, will start using second-to-last trun. Will reuse the channels if they are idle.<br>
 |-
 ! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Odd Lowest CIC'''<br>

← Older revision		Revision as of 14:57, 8 February 2013
Line 1:		Line 1:
−	The Channel Usage parameter is used to set a channel usage scheme for Network Access Points (NAPs), also called trunk groups, in order to avoid call collision. Values for this parameter are selected from a drop-down list in the NAP configuration page. The Channel Usage parameter can take on the followings:	+	The Channel Usage parameter is used to set a channel usage scheme for Network Access Points (NAPs), also called trunk groups, in order to avoid call collision.
		+
		+	This is also referred to as 'Line Hunting' or channel hunting. See http://en.wikipedia.org/wiki/Line_hunting
		+
		+	Values for this parameter are selected from a drop-down list in the NAP configuration page. The Channel Usage parameter can take on the followings:

	== ISDN and CAS NAP ==		== ISDN and CAS NAP ==

@@ Line 7: / Line 7: @@
 ! scope="col" | '''Description'''
 |-
-| '''Round-Robin'''<br>
+! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Round-Robin'''<br>
 | Traverse in order of all timeslots of the NAP, from first timeslot of first trunk to last timeslot of last trunk.
-Note: the longest idle timeslot will be put in the head of the list and will be used prior to other timeslot.
+'''Note:''' the longest idle timeslot will be put in the head of the list and will be used prior to other timeslot.
 For instance, if timeslot 1 is idle for 10 minutes, and timeslot 2 is idle for 5 minutes, timeslot 1 will be used. So all timeshots will be averagely occupied in a long term base.
 |-
-| '''Lowest Timeslot'''<br>
+! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Lowest Timeslot'''<br>
 | Start from lowest timeslot of every trunk in the NAP and will reuse them when they are idle. The interval of reusing a circuit is 25% of all circuits of this NAP.
 For instance, if you have 24 circuits in the NAP, and you make calls one by one, then it will use cic 1-2-3-4-5-6-1-2-3-4-5-6. There is also a 5s timeout to re-sort the idle timeslot list.
-Note: Lowest Timeslot algorithm is per-trunk. If multiple trunks in a NAP, the algorithm will try to use the available timeslot with lowest number among all trunks for the NAP.
+'''Note:''' Lowest Timeslot algorithm is per-trunk. If multiple trunks in a NAP, the algorithm will try to use the available timeslot with lowest number among all trunks for the NAP.
 |-
-| '''Highest Timeslot'''<br>
+! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Highest Timeslot'''<br>
 |  Start from highest timeslot of every trunk in the NAP and will reuse them when they are idle.  The interval of reusing a circuit is 25% of all circuits of this NAP.
 For instance, if you have 24 circuits in the NAP, and you make calls one by one, then it will use cic 24-23-22-21-20-19-24-23-22-21-20-19. There is also a 5s timeout to re-sort the idle timeslot list.
-Note: Highest  Timeslot algorithm is per-trunk. If multiple trunks in a NAP, the algorithm will try to use the available timeslot with highest number among all trunks for the NAP.
+'''Note:''' Highest  Timeslot algorithm is per-trunk. If multiple trunks in a NAP, the algorithm will try to use the available timeslot with highest number among all trunks for the NAP.
 |-
-| '''Lowest Mapping ID'''<br>
+! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Lowest Mapping ID'''<br>
 | Start from lowest timeslot of first trunk, second lowest of first trunk, etc. Once the first trunk is full, will start using second trunk. Will reuse the channels if they are idle.<br>
 |-
-| '''Highest Mapping ID'''<br>
+! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Highest Mapping ID'''<br>
 | Start from highest timeslot of last trunk, second highest of last trunk, etc. Once the last trunk is full, will start using second-to-last trun. Will reuse the channels if they are idle.
 |}
@@ Line 38: / Line 38: @@
 ! scope="col" | '''Description'''
 |-
-| '''Round-Robin'''<br>
+! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Round-Robin'''<br>
 | Traverse in order of all timeslots of the NAP, from first timeslot of first trunk to last timeslot of last trunk.
-Note: the longest idle timeslot will be put in the head of the list and will be used prior to other timeslot.
+'''Note:''' the longest idle timeslot will be put in the head of the list and will be used prior to other timeslot.
 For instance, if timeslot 1 is idle for 10 minutes, and timeslot 2 is idle for 5 minutes, timeslot 1 will be used. So all timeshots will be averagely occupied in a long term base.
 |-
-| '''Lowest Timeslot'''<br>
+! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Lowest Timeslot'''<br>
 | Start from lowest timeslot of every trunk in the NAP and will reuse them when they are idle. The interval of reusing a circuit is 25% of all circuits of this NAP.
 For instance, if you have 24 circuits in the NAP, and you make calls one by one, then it will use cic 1-2-3-4-5-6-1-2-3-4-5-6. There is also a 5s timeout to re-sort the idle timeslot list.
-Note: Lowest Timeslot algorithm is per-trunk. If multiple trunks in a NAP, the algorithm will try to use the available timeslot with lowest number among all trunks for the NAP.
+'''Note:''' Lowest Timeslot algorithm is per-trunk. If multiple trunks in a NAP, the algorithm will try to use the available timeslot with lowest number among all trunks for the NAP.
 |-
-| '''Highest Timeslot'''<br>
+! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Highest Timeslot'''<br>
 |  Start from highest timeslot of every trunk in the NAP and will reuse them when they are idle.  The interval of reusing a circuit is 25% of all circuits of this NAP.
 For instance, if you have 24 circuits in the NAP, and you make calls one by one, then it will use cic 24-23-22-21-20-19-24-23-22-21-20-19. There is also a 5s timeout to re-sort the idle timeslot list.
-Note: Highest  Timeslot algorithm is per-trunk. If multiple trunks in a NAP, the algorithm will try to use the available timeslot with highest number among all trunks for the NAP.
+'''Note:''' Highest  Timeslot algorithm is per-trunk. If multiple trunks in a NAP, the algorithm will try to use the available timeslot with highest number among all trunks for the NAP.
 |-
-| '''Lowest CIC'''<br>
+! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Lowest CIC'''<br>
 | Start from lowest CIC value of the NAP&nbsp;and will reuse them when they are idle. Similar to Lowest Timeslot, the interval of reusing a circuit is 25% of all circuits of this NAP.
-Note: Lowest CIC is per-NAP. Timeslot with lowest CICs within a NAP will be used first (no matter on which trunk they are, only CIC is looked at in that mode)
+'''Note:''' Lowest CIC is per-NAP. Timeslot with lowest CICs within a NAP will be used first (no matter on which trunk they are, only CIC is looked at in that mode)
 |-
-| '''Highest CIC'''<br>
+! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Highest CIC'''<br>
 | Start from highest CIC value of the NAP&nbsp;and will reuse them when they are idle. Similar to Highest Timeslot, the interval of reusing a circuit is 25% of all circuits of this NAP.
-Note: Highest CIC is per-NAP. Timeslot with highest CICs within a NAP will be used first (no matter on which trunk they are, only CIC is looked at in that mode)
+'''Note:''' Highest CIC is per-NAP. Timeslot with highest CICs within a NAP will be used first (no matter on which trunk they are, only CIC is looked at in that mode)
 |-
-| '''Lowest Mapping ID'''<br>
+! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Lowest Mapping ID'''<br>
 | Start from lowest timeslot of first trunk, second lowest of first trunk, etc. Once the first trunk is full, will start using second trunk. Will reuse the channels if they are idle.<br>
 |-
-| '''Highest Mapping ID'''<br>
+! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Highest Mapping ID'''<br>
 | Start from highest timeslot of last trunk, second highest of last trunk, etc. Once the last trunk is full, will start using second-to-last trun. Will reuse the channels if they are idle.
 |-
-| '''Odd Lowest CIC'''<br>
+! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Odd Lowest CIC'''<br>
 | Start from lowest CIC, odd value, and will reuse them if they are idle. Will only use even CICs when all odd CICs are used.<br>
 |-
-| '''Odd Highest CIC'''<br>
+! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Odd Highest CIC'''<br>
 | Start from highest CIC, odd value, and will reuse them if they are idle. Will only use even CICs when all odd CICs are used.
 |-
-| '''Even Lowest CIC'''<br>
+! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Even Lowest CIC'''<br>
 | Start from lowest CIC, even value, and will reuse them if they are idle. Will only use even CICs when all even CICs are used.
 |-
-| '''Even Highest CIC'''<br>
+! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | '''Even Highest CIC'''<br>
 | Start from highest CIC, even value, and will reuse them if they are idle. Will only use even CICs when all odd CICs are used.
 |}

@@ Line 2: / Line 2: @@
 == ISDN and CAS NAP  ==
-{| cellspacing="1" cellpadding="1" border="1" style="width: 1600px; height: 380px;"
+{| cellspacing="1" cellpadding="1" border="1" style="width: 1400px; height: 380px;"
 |-
 ! scope="col" | '''Channel Usage'''
@@ Line 33: / Line 33: @@
 == SS7 ISUP NAP<br>  ==
-{| cellspacing="1" cellpadding="1" border="1" style="width: 1600px; height: 770px;"
+{| cellspacing="1" cellpadding="1" border="1" style="width: 1400px; height: 770px;"
 |-
 ! scope="col" | '''Channel Usage'''

@@ Line 2: / Line 2: @@
 == ISDN and CAS NAP  ==
-{| cellspacing="1" cellpadding="1" border="1" style="width: 1600px; height: 350px;"
+{| cellspacing="1" cellpadding="1" border="1" style="width: 1600px; height: 380px;"
 |-
 ! scope="col" | '''Channel Usage'''

@@ Line 1: / Line 1: @@
-The Channel Usage parameter is used to set a channel usage scheme for Network Access&nbsp;Points (NAPs), also called trunk groups, in order to avoid call collision. Values for this parameter are selected from a drop-down list. The Channel Usage parameter can take on the following values:
+The Channel Usage parameter is used to set a channel usage scheme for Network Access&nbsp;Points (NAPs), also called trunk groups, in order to avoid call collision. Values for this parameter are selected from a drop-down list in the NAP configuration page. The Channel Usage parameter can take on the followings:
 == ISDN and CAS NAP  ==
-{| cellspacing="1" cellpadding="1" border="1" style="width: 1200px; height: 350px;"
+{| cellspacing="1" cellpadding="1" border="1" style="width: 1300px; height: 350px;"
 |-
 ! scope="col" | '''Channel Usage'''
@@ Line 8: / Line 8: @@
 |-
 | '''Round-Robin'''<br>
-| Traverse, in order, all timeslots of the NAP from first timeslot of first trunk to last timeslot of last trunk, before starting to use first timeslot of first trunk again.
+| Traverse in order of all timeslots of the NAP, from first timeslot of first trunk to last timeslot of last trunk.
 |-
 | '''Lowest Timeslot'''<br>
-| Start from lowest timeslot of every trunk and will reuse them if they are idle.<br>
+| Start from lowest timeslot of every trunk in the NAP and will reuse them when they are idle.  The interval of reusing a circuit is 25% of all circuits of this NAP.
 |-
 | '''Highest Timeslot'''<br>
-| Start from highest timeslot of every trunk and will reuse them if they are idle.<br>
+|  Start from highest timeslot of every trunk in the NAP and will reuse them when they are idle.  The interval of reusing a circuit is 25% of all circuits of this NAP.
 |-
@@ Line 28: / Line 35: @@
 == SS7 ISUP NAP<br>  ==
-{| cellspacing="1" cellpadding="1" border="1" style="width: 1200px; height: 600px;"
+{| cellspacing="1" cellpadding="1" border="1" style="width: 1300px; height: 600px;"
 |-
 ! scope="col" | '''Channel Usage'''
 ! scope="col" | '''Description'''
 |-
 | '''Lowest Timeslot'''<br>
-| Start from lowest timeslot of every trunk and will reuse them if they are idle.<br>
+| Start from lowest timeslot of every trunk in the NAP and will reuse them when they are idle.  The interval of reusing a circuit is 25% of all circuits of this NAP.
 |-
 | '''Highest Timeslot'''<br>
-| Start from highest timeslot of every trunk and will reuse them if they are idle.<br>
+|  Start from highest timeslot of every trunk in the NAP and will reuse them when they are idle.  The interval of reusing a circuit is 25% of all circuits of this NAP.
 |-
 | '''Lowest CIC'''<br>
-| Start from lowest CIC value of the NAP&nbsp;and will reuse them if they are idle<br>
+| Start from lowest CIC value of the NAP&nbsp;and will reuse them when they are idle. Similar to Lowest Timeslot, the interval of reusing a circuit is 25% of all circuits of this NAP.
 |-
 | '''Highest CIC'''<br>
-| Start from highest CIC value of the NAP and will reuse them if they are idle<br>
+| Start from highest CIC value of the NAP&nbsp;and will reuse them when they are idle. Similar to Highest Timeslot, the interval of reusing a circuit is 25% of all circuits of this NAP.
 |-
@@ Line 75: / Line 90: @@
 == Configuration  ==
-===ISDN===
+===ISDN NAP===
 *[[Toolpack:Allocating_an_ISDN_Network_Access_Point_(NAP)_A|Creating an ISDN NAP in v2.6]]
 *[[Toolpack:Allocating_an_ISDN_Network_Access_Point_(NAP)_A|Creating an ISDN NAP in v2.5]]
-===SS7===
+===SS7 NAP===
 *[[Toolpack:Creating_a_NAP_(ISUP)_A|Creating an ISUP NAP in v2.6]]
 *[[Toolpack:Creating_a_NAP_(ISUP)_A|Creating an ISUP NAP in v2.5]]
-===CASR2===
+===CASR2 NAP===
 *[[Toolpack:Creating_a_CAS_R2_NAP_A|Creating a CAS R2 NAP in v2.6]]
 *[[Toolpack:Creating_a_CAS_R2_NAP_A|Creating a CAS R2 NAP in v2.5]]
 [[Category:Parameters]]

@@ Line 1: / Line 1: @@
 The Channel Usage parameter is used to set a channel usage scheme for Network Access&nbsp;Points (NAPs), also called trunk groups, in order to avoid call collision. Values for this parameter are selected from a drop-down list. The Channel Usage parameter can take on the following values:
-== ISDN and CAS  ==
+== ISDN and CAS NAP  ==
-*'''Round-Robin'''&nbsp;: Traverse, in order, all timeslots of the NAP from first timeslot of first trunk to last timeslot of last trunk, before starting to use first timeslot of first trunk again.
+|-
-*'''Lowest Timeslot''': Start from lowest timeslot of every trunk and will reuse them if they are idle.<br>
+| '''Highest Timeslot'''<br>
-*'''Highest Timeslot''': Start from highest timeslot of every trunk and will reuse them if they are idle.<br>
+| Start from highest timeslot of every trunk and will reuse them if they are idle.<br>
-*'''Lowest Mapping ID''':&nbsp;Start from lowest timeslot of first trunk, second lowest of first trunk, etc. Once the first trunk is full, will start using second trunk. Will reuse the channels if they are idle.<br>
-*'''Highest Mapping ID''': Start from highest timeslot of last trunk, second highest of last trunk, etc. Once the last trunk is full, will start using second-to-last trun. Will reuse the channels if they are idle.
-== SS7 ISUP <br>  ==
+|-
 *'''Round-Robin'''&nbsp;: Traverse, in order, all timeslots of the NAP from first timeslot of first trunk to last timeslot of last trunk, before starting to use first timeslot of first trunk again.
 *'''Lowest Timeslot''': Start from lowest timeslot of every trunk and will reuse them if they are idle.<br>