Thanks guys,
Thanks guys Now it is clear and safe to not use this option for ios mgcp gateway :) Cheers Jeremy On Thu, Dec 25, 2008 at 12:31 AM, Michael Thompson <[email protected]>wrote: > Guys, to clarify a couple of things. > > > > B-Channel Maintenance CAN be used for any MGCP gateway. > > > > For purposes of the lab, you only NEED to use it for the 6608 blade, and > why is that?? The 6608 blade does not give you a configuration option that > could allow a fractional PRI. An IOS MGCP gateway will allow you to > configure a fractional T-1/PRI with the timeslot option. The exception to > that is if you use the ccm-manager config option for MGCP (which screws you > up for the lab). If you use the ccm-manager config option, it assumes only > a full PRI…it won't let you config a fractional. > > > > Hope that helps clarify. > > > ------------------------------ > > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *Hardesty, Scott > *Sent:* Wednesday, December 24, 2008 8:24 AM > *To:* jeremy co; [email protected] > > *Cc:* [email protected] > *Subject:* Re: [OSL | CCIE_Voice] using Change B-Channel Maintenance for > IOST1or not? > > > > > > You use the B-channel maintenance for all MGCP gateways (IOS and 6608 > module). For the lab, outbound calls should work without b-channel > maintenance if you are using the top-down since the gateway will select the > 1st channel and hunt sequentially down for additional channels. How is > the PSTN sending the calls inbound? If the PSTN is sending calls inbound > starting at the 23rd channel (bottom up) then the call will likely fail > because the 23rd channel is showing available but I is not on the MGCP > side. > > > > So the always correct engineering answer still applies. "IT DEPENDS!" > > > > Scott. > > > > > > *Scott Hardesty | Cisco Engineer | MidAtlantic | Presidio Networked > Solutions* > > *7601 Ora Glen Drive, Suite 100**, Greenbelt, MD 20770** | > [email protected]* > > *D: 301.313.2041 | C: 443.789.1219 | www.presidio.com* > > > > ------------------------------ > > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *jeremy co > *Sent:* Wednesday, December 24, 2008 1:51 AM > *To:* [email protected] > *Cc:* [email protected] > *Subject:* Re: [OSL | CCIE_Voice] using Change B-Channel Maintenance for > IOST1 or not? > > > > I think we use this option to busy out unused channels since we use > fractional T1 not full one. > > But my doubt is to use it on IOS mgcp GW or not? > > > > Jeremy > > On Wed, Dec 24, 2008 at 5:36 PM, <[email protected]> wrote: > > > we only need to do b-channel maintenance if question ask for bottom up > right? if we choose top down this is not needed, am i right? > > Sara > > > > *jeremy co <[email protected]>* wrote: > > > > Hi, > > I've seen some workbooks use Change B-Channel Maintenance option to busyout > unused channels on T1 of IOS GWs as well as 6500 T1 while some of them only > use this option on 6500 T1. > > In cisco Docs, I can it specified to use thi option for "MGCP gateways" > > > So which method should be used? > > btw, I use both and both works for IOS . > > > Jeremy > > > ------------------------------ > > Power up the Internet with Yahoo! > Toolbar.<http://pr.mail.yahoo.co.jp/toolbar/> > > >
