[asterisk-users] Nortel 81C MSDL Trunking to Asterisk TE110P, Nortel Resetting PRI Channels

[Watkins, Bradley]

Are you saying that the Nortel will not allow you to set the clock to internal?  If so that's unfortunate, as it's the only reliable solution for you in this situation.  You really need your clock hierarchy to start at the received clock from the telco.
 
- Brad

________________________________

From: asterisk-users-bounces at lists.digium.com on behalf of Marlon_Blair at doh.state.fl.us
Sent: Wed 2/14/2007 11:20 AM
To: asterisk-users at lists.digium.com
Subject: [asterisk-users] Nortel 81C MSDL Trunking to Asterisk TE110P,Nortel Resetting PRI Channels



>>You have the PRIs set up to recover clock from the Asterisk box, is that what you want? If so, you certainly do >>*not* want span=1,1,0 or 2,2,0 since that will make Asterisk think the 81C should be clock master. Are there any >>telco-timed PRIs somewhere? If so, set up the PRIs on the 81C to be CLOK INT and then use 

>>span=1,1,0,esf,b8zs and span=2,2,0,esf,b8zs on the Asterisk box. I'm going to assume that a big system like an 
 >>existing 81C already has the master clock set, but of course that will be a necessity if using internal clocking. - Brad 

They type of card we are using on the Nortel 81C will not allow clocking.  The clock must be supplied by the Asterisk.  We do not have any other clocking running into the Asterisk.


Marlon Blair 
DOH, Network System Analyst 
(850) 245-4400, Cell (850) 528-4244 
Fax (850) 412-1148 
Work Hours 7 AM to 3:30 PM 


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