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 [cid:[email protected]] 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 <== this will only matter in SRST mode when MGCP is down, right ? isdn outgoing display-ie <== 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 [BV-CustomCoreSmall1] ________________________________ 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. 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