Clock source will be important here. For phase one, you should probably set asterisk to time from the PBX since the PBX is likely timing from the T1 circuit. At phase two, you will likely want to reverse this having your PBX clock from the Asterisk system and having Asterisk clock from the telco T1. This of course assumes that there is only 1 Telco T1 involved. Timing is the first most important consideration. After that, you want to verify that both ends are using the same signalling type (it appears that you are using CAS signalling). Check that your PBX is using CAS and find out exactly what type. Zapata will need to be configured to use the same type of signalling. Check both sides looking for any red alarms etc that might indicate a cable problem. From the CLI, 'zap show channels' or using zttool from the command line should help you determine the status of the link. Red alarms usually indicate that this end sees an out of frame condition while a yellow means that the opposite side sees and out of frame. A yellow on one side is a red on the other.
-----Original Message----- From: Karthik Natarajan Sent: Tue, June 21, 2005 3:47 pm We have an old Telrad 128KSU PBX to which I am trying to connect asterisk > in the following manner: Current Setup: Telco-> T1->PBX Desired Setup: Telco-> T1-> Asterisk-> T1-> PBX. I am first trying to setup the Asterisk -> T1->PBX part without disturbing existing setup so I can get asterisk to forward calls to PBX and once that is done, I would try to move the telco from pbx to Asterisk. I have 2 T1 cards on my PBX (1 for current telco and 1 for connecting asterisk) I have a TE405P card on the Asterisk server with span 2 connected to the > pbx via a T1 crossover cable. My PBX T1 config is set to ESF, B8ZS and E&M Wink. My zaptel.conf has the following: Span=2,0,0,esf,b8zs ;connecting port 2 of TE405P card to pbx, leaving > port 1 for porting telco later e&m=25-48 loadzone=us defaultzone=us my Zapata.conf has the following: group=1 context=default signalling=featd ; em_w ;have been trying both in various combinations switchtype=national channel => 25-48 my extensions.conf has the following sample dialplan: exten => 233,1,Dial(Zap/g1/9233) exten => 241,1,Dial(Zap/g1/9241) exten => 253,1,Dial(Zap/g1/9253) I want that if someone calls in to asterisk and dials 233 it should > forward the call to my pbx via the T1 and send 9233 and my pbx has a DID route for 9233 to ring 233. Similarly for others. I am stuck at my pbx not showing a green light on the T1 card, while the TE405P seems to sense the pbx and shows a green light on the card on asterisk box. The pbx is connected to asterisk using a T1 crossover cable. I tried a straight cable but then the TE405P starts showing a blinking red. Can anyone please help? Karthik Natarajan [EMAIL PROTECTED] _______________________________________________ Asterisk-Users mailing list [email protected] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ Asterisk-Users mailing list [email protected] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
