Brian, "Bottom Up" means that the call agent will instruct the gateway to signal the call on the last B-channel first and then move in sequential order to the first B-channel. So, in your case that would be channel 3, 2, and finally 1.
"Top Down" means that the call agent will instruct the gateway to signal the call on the first B--channel and then move in sequential order to the last B-channel. So, 1 then 2 and finally 3. So, what you are observing is expected behavior. Change the Channel Selection order to "Top Down". Then do "no mgcp" / "mgcp" on the gateway. You should be good to go. HTH -Bill -- William Bell, CCIE #38914 blog: http://ucguerrilla.com twitter: @ucguerrilla On Apr 13, 2013, at 7:03 PM, VanBenschoten, Brian wrote: > I'm working on IPexpert Lab Prep Workbook - Lab 4A > Section 4.3. Asks us to configure router at Branch 1 as MGCP using channels > 1-3 and ensure that the first outbound call to the PSTN uses channel 1 > > I've got the gateway all configured and working. But I wasn’t able to force > it to use channel 1 "bottom up" as the field is referenced in CUCM > There are 2 commands in CUCM for this > Channel Selection Order & Channel IE Type > <image001.png> > The channel selection order seems pretty straight forward , our choices are > "Bottom up, and Top Down" > I set it to "Bottom Up" , leaving the "Channel IE Type" to the default > setting of "Use number when 1B" > I'm not using CCM Config and I reset the "gateway" from CUCM and no mgcp... > mcgp on the router > > Outbound calls kept going out channel 3 > > The only way I could get this to work properly was to change the "Channel IE > Type" = "Slotmap" > > Then outbound calls went out the first channel, which on an ISDN Q931 debug > showed as Channel 0. > > I'm not familiar with the "Channel IE Type" settings. I've never had to mess > with them before. > Does anyone have any thoughts or comments? > ISDN debugs and config is below > I'm using my home lab so the router in question is a 2811 running > c2800nm-ipvoicek9-mz.151-4.M4.bin. Not sure if that makes a difference or not. > > > > !!! WITH DEFAULT CHANNEL IE SETTING AND BOTTOM UP > *Apr 13 22:35:59.915: ISDN Se0/1/0:23 Q931: TX -> SETUP pd = 8 callref = > 0x0003 > Bearer Capability i = 0x8090A2 > Standard = CCITT > Transfer Capability = Speech > Transfer Mode = Circuit > Transfer Rate = 64 kbit/s > Channel ID i = 0xA98383 > Exclusive, Channel 3 > Facility i = 0x9F8B0100A112020101020100800A4252312D50686F6E6532 > Protocol Profile = Networking Extensions > 0xA112020101020100800A4252312D50686F6E6532 > Component = Invoke component > Invoke Id = 1 > Operation = CallingName > Name Presentation Allowed Extended > Name = BR1-Phone2 > Display i = 'BR1-Phone2' > Calling Party Number i = 0x0081, '6178631002' > BR1(config)# > Plan:Unknown, Type:Unknown > Called Party Number i = 0xA1, '6178632683' > Plan:ISDN, Type:National > > > !!! CHANGING THE IE SETTING TO "SLOTMAP", keep Channel selection order at > "bottom up" as before > > *Apr 13 22:39:36.506: ISDN Se0/1/0:23 Q931: TX -> SETUP pd = 8 callref = > 0x0001 > Bearer Capability i = 0x8090A2 > Standard = CCITT > Transfer Capability = Speech > Transfer Mode = Circuit > Transfer Rate = 64 kbit/s > Channel ID i = 0xA993000004 > Exclusive, Channel 0 > Facility i = 0x9F8B0100A112020101020100800A4252312D50686F6E6532 > Protocol Profile = Networking Extensions > 0xA112020101020100800A4252312D50686F6E6532 > Component = Invoke component > Invoke Id = 1 > Operation = CallingName > Name Presentation Allowed Extended > Name = BR1-Phone2 > Display i = 'BR1-Phone2' > Calling Party Number i = 0x0081, '6178631002' > BR1(config)# > Plan:Unknown, Type:Unknown > Called Party Number i = 0xA1, '6178632683' > Plan:ISDN, Type:National > > > !!!!!! CONFIG > service timestamps debug datetime msec > service timestamps log datetime msec > no service password-encryption > ! > hostname BR1 > ! > boot-start-marker > boot-end-marker > ! > ! > no aaa new-model > network-clock-participate wic 1 > network-clock-select 1 T1 0/1/0 > ! > no ip domain lookup > ip domain name proctorlabs.com > no ipv6 cef > multilink bundle-name authenticated > ! > ! > isdn switch-type primary-ni > ! > voice-card 0 > ! > license udi pid CISCO2811 sn FTX1011A423 > ! > ! > controller T1 0/1/0 > pri-group timeslots 1-3,24 service mgcp > ! > ip tcp synwait-time 5 > ! > ! > interface Loopback0 > ip address 10.10.110.2 255.255.255.255 > ip ospf network point-to-point > ! > ! > interface FastEthernet0/1 > description WAN > ip address 10.10.111.1 255.255.255.0 > duplex auto > speed auto > ! > interface Serial0/1/0:23 > no ip address > encapsulation hdlc > isdn switch-type primary-ni > isdn incoming-voice voice > isdn bind-l3 ccm-manager > isdn bchan-number-order ascending ç this will only matter in SRST mode when > MGCP is down, right ? > isdn outgoing display-ie ç this will only matter in SRST mode when MGCP is > down, right ? > no cdp enable > ! > ! > interface Vlan1 > no ip address > ! > interface Vlan130 > description data > ip address 10.10.101.1 255.255.255.0 > ! > interface Vlan240 > description voice > ip address 10.10.201.1 255.255.255.0 > ip helper-address 10.10.210.10 > ! > router ospf 1 > router-id 10.10.101.1 > network 10.10.0.0 0.0.255.255 area 0 > ! > ip forward-protocol nd > ! > no ip http server > no ip http secure-server > ! > ip route 0.0.0.0 0.0.0.0 10.10.111.254 > ! > ! > ! > ! > control-plane > ! > ! > voice-port 0/1/0:23 > echo-cancel coverage 64 > ! > ccm-manager redundant-host 10.10.210.10 > ccm-manager mgcp > no ccm-manager fax protocol cisco > ccm-manager music-on-hold > ! > mgcp > mgcp call-agent 10.10.210.11 2427 service-type mgcp version 0.1 > mgcp dtmf-relay voip codec all mode out-of-band > mgcp modem passthrough voip mode nse > mgcp package-capability rtp-package > mgcp package-capability sst-package > mgcp package-capability pre-package > mgcp default-package mt-package > no mgcp timer receive-rtcp > mgcp sdp simple > mgcp fax t38 inhibit > mgcp bind control source-interface Loopback0 > mgcp bind media source-interface Loopback0 > ! > mgcp profile default > ! > ! > ! > ! > ! > > _______________________________________ > Brian Van Benschoten - CCIE # 5421 > Managing Consultant - Unified Communications > Core BTS - North Central Region > 3001 West Beltline Highway > Madison, WI 53713 USA > (P) +1 (608) 661-7780 > (F) +1 (608) 661-7701 > [email protected] > www.corebts.com > <image002.png> > > > Important Notice: This email message and any files transmitted with it are > confidential and intended solely for the use of the individual or entity to > whom they are addressed. If you are not the named addressee, you should not > disseminate, distribute or copy this e-mail. Please notify the sender > immediately by e-mail if you have received this e-mail by mistake and delete > this e-mail from your system. Please note that any views or opinions > presented in this email are solely those of the author and do not necessarily > represent those of Core BTS. Core BTS specifically disclaims liability for > any damage caused by any virus transmitted by this email. > > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com
_______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com
