<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: Verdana; font-size: 10pt; color: #000000'>I usually do two things, first, I run the DSP calculator to see if everything fits. I can't find the NM-HDA-4FXS on the drop down, that's my first concern.<br><br>Second, I look at the "compare models" data sheet for the device and see what it says for the max number of FXS ports. Unfortunately, I can't find one for the 2800 series. The only thing I could find is: <br><br>http://www.cisco.com/en/US/prod/collateral/routers/ps5855/prod_brochure0900aecd8019dc1f.pdf<br><br>which doesn't have FXO counts for individual models.<br><br>Not sure if that helps or not.<br><br><br><span><br><span name="x"></span>---<br>Lelio Fulgenzi, B.A.<br>Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1<br>(519) 824-4120 x56354 (519) 767-1060 FAX (ANNU)<br>^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^<br>Cooking with unix is easy. You just sed it and forget it. <br> - LFJ (with apologies to Mr. Popeil)<br><span name="x"></span><br></span><br><hr id="zwchr"><b>From: </b>"chris" <tknchris@gmail.com><br><b>To: </b>cisco-voip@puck.nether.net<br><b>Sent: </b>Friday, December 21, 2012 10:24:36 AM<br><b>Subject: </b>[cisco-voip] FXS/DSP limits on 2800 (2811)<br><br>Hi,<br><br>I am looking at possibility of using some spare 2811's as voice<br>gateways to replace some aging 2600's and a vg224.<br><br>From reading the compability pages of the modules, I was trying to<br>figure out if I could realistically run a 2811 with:<br><br>1x NM-HDA-4FXS w/ 2 EM-HDA-8FXS<br>4x VIC-4FXS/DID<br><br>Can this platform drive 36 FXS? If not how many can I realistically<br>do? Will it be capable of handling activity on all 36 simultaneously?<br>I do not plan to run any other features/services other than connecting<br>the analogue devices to SIP<br><br>Any thoughts/advice/recommendations would be appreciated. If you think<br>this is not realistic and have any suggestions that would be great. My<br>main attraction to this platform is that I have a few on hand, they<br>are fairly cheap secondhand and they can use some of the legacy vic<br>cards which are also available at pretty low cost.<br><br>Thanks<br>chris<br>_______________________________________________<br>cisco-voip mailing list<br>cisco-voip@puck.nether.net<br>https://puck.nether.net/mailman/listinfo/cisco-voip<br></div></body></html>