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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hi everyone –<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I’ve been asked a question that I don’t know if I’ve heard before –<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I have two existing PRI circuits, built as a single trunk group, with about 1000 DID numbers on them, used for voice calls.<o:p></o:p></p><p class=MsoNormal>(for sake of mentioning it, the PRIs arrive on two different routers, and all the DIDs are reachable inbound on either one)<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Someone wants to add more DIDs for the purpose of faxing, with those DIDs being dedicated for fax usage, not for voice calls.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>But they want to limit the total number of calls that will be allowed to come in, so that we don’t ‘eat’ all 47 channels with attempted inbound faxes.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>How would I limit the allowable calls coming in to the DIDs 1500-1700 and 2100-2300 ?<o:p></o:p></p><p class=MsoNormal>(assuming 4-digit delivery from the telco)<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>One factor that might do it is that the session-target device mentioned below<o:p></o:p></p><p class=MsoNormal>only has two active channels – <o:p></o:p></p><p class=MsoNormal>Would that have the effect of stopping the 3<sup>rd</sup>, 4<sup>th</sup>, etc call and sending them back to the carrier<o:p></o:p></p><p class=MsoNormal>with a busy signal? <o:p></o:p></p><p class=MsoNormal>I don’t want a re-order tone – just busy.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Or would I use the ‘max-conn’ option as shown below under the dial-peer to ensure that<o:p></o:p></p><p class=MsoNormal>no more calls can come in?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I think my dial peers would look like this:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='color:#1F497D'>dial-peer voice 1000 voip<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>description Inbound faxes<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>destination-pattern 1[5-7]..<o:p></o:p></span></p><p class=MsoNormal><b><span style='font-size:12.0pt;color:red'>max-conn 2<o:p></o:p></span></b></p><p class=MsoNormal><span style='color:#1F497D'>session target ipv4:192.168.200.17<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>session transport udp<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>dtmf-relay h245-signal<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>codec g711ulaw<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>fax rate 14400<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>fax protocol t38 ls-redundancy 5 hs-redundancy 2 fallback none<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>no vad<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>!<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='color:#1F497D'>dial-peer voice 1000 voip<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>description Inbound faxes<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>destination-pattern 2[1-3]..<o:p></o:p></span></p><p class=MsoNormal><b><span style='font-size:12.0pt;color:red'>max-conn 2<o:p></o:p></span></b></p><p class=MsoNormal><span style='color:#1F497D'>session target ipv4:192.168.200.17<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>session transport udp<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>dtmf-relay h245-signal<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>codec g711ulaw<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>fax rate 14400<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>fax protocol t38 ls-redundancy 5 hs-redundancy 2 fallback none<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>no vad<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>!<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>