When you say L1 and L2 are you talking about layer 1 and 2 of the OSI Model?
Michael Sears, CCIE(V)#38404 "Designing and Implementing Cisco Unified Communications on Unified Computing Systems" From: CISCO CCIE VOICE [mailto:ccievoic...@gmail.com] Sent: Monday, July 01, 2013 12:58 PM To: Sears, Michael (msears) Cc: ccie_voice@onlinestudylist.com Subject: Re: CCIE_Voice Digest, Vol 89, Issue 4 Thank You Michael, Question asked about L1 should me NETWORK SIDE and L2 USER SIDE in that case controller t1 0/0/0 clock source line ---------------------L1 Network Side (This is by default enable no need to add it) and for L2: USER SIDE do we need to add any additional commands under serial interface 0/0/0:23 ? Thanks On Mon, Jul 1, 2013 at 9:29 PM, Sears, Michael (msears) <michael.se...@compucom.com<mailto:michael.se...@compucom.com>> wrote: NETWORK SIDE: ! PSTN ROUTER network-clock-participate wic 1 controller T1 0/1/0 clock source internal linecode B8ZS framing ESF pri-group timeslots 1-24 clock source internal <Makes PSTN the Network Side> description ** T1 PRI Voice Connection To: S0/1/0 BR1-RTR ** ! ! interface Serial0/1/0:23 description ** T1 VOICE CONNECTION TO S0/1/0 BR1-RTR ** no ip address encapsulation hdlc isdn switch-type primary-ni isdn protocol-emulate network <Makes PSTN the Network Side> isdn incoming-voice voice isdn negotiate-bchan resend-setup isdn outgoing display-ie isdn outgoing ie redirecting-number no cdp enable ! ! PSTN#show controller t1 0/1/0 T1 0/1/0 is up. Framing is ESF, Line Code is B8ZS, Clock Source is Internal. ! USER SIDE BRANCH ROUTERS USING T1 MGCP isdn switch-type primary-ni network-clock-participate wic 0 network-clock-select 1 T1 0/1/0 controller T1 0/0/0 pri-group timeslots 1-24 service mgcp clock source line <Makes Router the user Side gets clock from PSTN> linecode B8ZS framing ESF description ==VOICE PRI== ! ! 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 send-alerting isdn sending-complete isdn outgoing display-ie isdn outgoing ie redirecting-number no cdp enable ! ! BR1-RTR#show controller t1 0/1/0 T1 0/1/0 is up. Framing is ESF, Line Code is B8ZS, Clock Source is Line. ! Michael Sears, CCIE(V)#38404 "Designing and Implementing Cisco Unified Communications on Unified Computing Systems"
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