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Frog, The whole logic of SRST is that if the callmanager is not reachable the router should be able to do basic call processing. If the gateway is configured for MGCP, The router will fallback to H.323 when the mgcp fails because of WAN failure. The mgcp commands on the controller will not be relevant as mgcp is no longer controlling them. Dial-peers will take over.
In your case, do you have a translation pattern? if not, your 4 digit dialing will not work anymore.
HTH, Tarun
On Dec 26, 2007 6:59 AM, Radioactive Frog wrote:
> Hi Guys, > > I have just noticed during labbing that when SRST kicks in , the ” isdn > bind-l3 ccm-manager” command disappear from the ISDN D channel interface. > interface Serial0/2/0:23 > description — ISDN d channel — > no ip address > encapsulation hdlc > isdn switch-type primary-ni > isdn incoming-voice voice > isdn bind-l3 ccm-manager > isdn bchan-number-order ascending > no cdp enable > end > > > D controller, logs during sRST > Dec 26 11:25:49.510: %LINK-3-UPDOWN: Interface Serial0/2/1:23, changed > state > to up > Dec 26 11:25:49.510: %LINK-3-UPDOWN: Interface Serial0/2/1:0, changed > state > to down > Dec 26 11:25:49.510: %LINK-3-UPDOWN: Interface Serial0/2/1:1, changed > state > to down > Dec 26 11:25:49.510: %LINK-3-UPDOWN: Interface Serial0/2/1:2, changed > state > to down > > And noticed that the L3 backhauling command disappread: > > interface Serial0/2/0:23 > description — ISDN d channel — > no ip address > encapsulation hdlc > isdn switch-type primary-ni > isdn incoming-voice voice > isdn bchan-number-order ascending > no cdp enable > end > > When I dialed the phone number of HQ site It couldn’t went thorugh, here > are > the logs: > > > Plan:Unknown, Type:Unknown thats the problem > > Dec 26 11:30:29.351: ISDN Se0/2/0:23 Q931: RX = > 0×8094 > Channel ID i = 0xA98381 > Exclusive, Channel 1 > RS1# > Dec 26 11:30:37.359: ISDN Se0/2/1:23 Q931: RX callref > = 0×8094 > Cause i = 0×82E6 - Recovery on timer expiry > Dec 26 11:30:37.363: ISDN Se0/2/1:23 Q931: TX -> RELEASE pd = 8 callref = > 0×0094 > Dec 26 11:30:37.375: ISDN Se0/2/1:23 Q931: RX callref = 0×8094 > RS1# > > I remember, a copule of time I rebooted the router, removed the controller > interface , re-confiured it and it worked. > This time i rebooted the router, shut/no shut the interface but still srst > phones are not able to call HQ site phones. > > Any Idea if this happens to the lab exam, will cisco consider it as a bug? > > I upgraded the IOS and that fixed this issue. but the IOS I tested with > won’t be in the lab exam. > > Any idea if Cisco will still deduct marks if sRST doesn’t work due to > bugs? > remember their is no workaround, searched all Cisco.comdocs….. > > > Frog > > _______________________________________________________________________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html