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Old 05-03-2014, 08:22 AM
cleveland cleveland is offline
Join Date: May 2014
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Default CM Trunk Group question - 255 member limit but need to add more circuits/lines

Have isdn trk grp toll free inbd, NFAS signaling with 10 PRIs, 238 members. Trk Grp member size in CM is limited to 255. But I need to add 2 more PRIs, all B channels, to give more lines. I know I can add my 2 new circuits ds1 boards to existing signal grp but with the Trk Grp member size limit, not enough room to add 48 more B channels into existing Trk Grp. Could I add the 2 new circuits (ds1s) to the existing Signaling grp, then build a 2nd, new isdn Trk Grp, and add the 48 new B channels there and assign them to the existing Signaling grp? Thanks for any info.
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Old 05-04-2014, 11:42 AM
ilalpatidar ilalpatidar is offline
Join Date: Jan 2014
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Yes it can be done but you may face issue that 2nd trunk is not coming up.
I have experienced similar situation and had to add separate D channel and trunk.
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Old 05-04-2014, 02:25 PM
rwallo rwallo is offline
Join Date: Dec 2013
Location: Slidell LA
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Just add trunks with same signalling group to second trunk group - what do you get?
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