We have a CS1000 Nortel PBX and last summer deployed about 25 Nortel 1140E phones. We put the phones on a separate VLAN with a private IP subnet but have not set QoS. We do not use vlan trunking into a phone and daisy-chaining a device off of the phone. I've learned that we are using Nortel/Avaya's proprietary VoIP protocol between the phone and the PBX.
Overall it works well, but we've noticed when a person answers the phone the first syllable or so is cut off. Avaya says it is a network problem and we need to set QoS. I'm working on that. We use Enterasys switches (generally C3-series or C5-series) for the access layer and Cisco for everything else. Barron Barron Hulver Director of Networking, Operations, and Systems Center for Information Technology Oberlin College 148 West College Street Oberlin, OH 44074 440-775-8702 http://www2.oberlin.edu/staff/bhulver/ On 4/5/13 9:45 PM, Fetcie, Steven wrote: > May not be at your scale, but we run a dozen Nortel 1140E phones and CSM1000 > PBX. > The rest of the extensions are standard telco digital ckts. Added the > 1140E's as a test of > VOIP. > > Network has X Router at the Core, N3s at distribution, C3/5s at the edge. > Not running any > QoS just have them in their own vlan > > Have never had a network related issue since we installed them 3 plus years > ago... > > Regards, > > Steve Fetcie > State University of New York at Canton > Canton, New York > ________________________________________ > From: Baack, Adam [[email protected]] > Sent: Friday, April 05, 2013 8:37 PM > To: Enterasys Customer Mailing List > Subject: [enterasys] Nortel VOIP Phones? > > Anyone running a complete Enterasys networking shop, but have Nortel > phones/PBX? We just cutover one site that now has a S4 core and B5 stacks > for end-users; some users have started experiencing a loud squeal on their > VOIP phone when trying to make or receive a call and then the entire phone > freezes up. Only way to fix is to unplug the Ethernet and back in to reboot > it. It’s purely random and hard to replicate but my next step is to put a > fluke on one of the phones and capture until it happens again. We are also > working this on the phone side too and checking what Nortel says. > > Thanks for any input! > > > [cid:[email protected]] > > > * --To unsubscribe from enterasys, send email to > [email protected]<mailto:[email protected]> with the body: unsubscribe > enterasys [email protected] > > ***IMPORTANT MESSAGE*** This message is intended for the use of the person or > entity to whom it is addressed and may contain information that is privileged > and confidential, the disclosure of which is governed by applicable law. If > the reader of this email is not the intended recipient or the employee or > agent responsible to deliver it to the intended recipient, you are hereby > notified that any dissemination, distribution or copying of this information > is STRICTLY PROHIBITED. If you have received this email by error, please > notify us immediately and destroy the related message. This footnote also > confirms that this email message has been swept for the presence of computer > viruses, worms, hostile scripts and other email-borne network threats. PLEASE > NOTE: Florida has a very broad public records law. Most written > communications to or from government officials are public records available > to the public and media upon request. Your email communications may be > subject to public disclosur e per Sec. 119 F.S. > > --- > To unsubscribe from enterasys, send email to [email protected] with the body: > unsubscribe enterasys [email protected] > --- To unsubscribe from enterasys, send email to [email protected] with the body: unsubscribe enterasys [email protected]
