Thank you Peter, how can I add the options to Dial to generate ringback??? do you have an example??? By the way, it is a PRI E1, with 30 bchannels and 1 dchannel. For a little background, I'm intending to replace my actual PBX with Asterisk, and everything is just working fine, until yesterday when I realized that when a call was made from some external lines, this lines didn't receive a dialtone. For this reason, I began to make some exhaustive test cases, and began to make calls from distinct providers to my E1. In all this testing I received a dialtone, except for a GSM cellular phone from a specific Telco. I tested some others GSM cellulars from the same Telco, and got always the same functionality, they didn't receive a dialtone. I think that if Asterisk can generate a ringback, this is going to solve all my problems with this little issue. Thank you in advance Peter for your help.
Marco -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Peter Svensson Sent: Thursday, February 10, 2005 6:10 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [Asterisk-Users] No dialtone in a E1 On Thu, 10 Feb 2005, Marco Castillo wrote: > Hi, I'm having a little problem when trying to make a call from asterisk. I > connect a SIP phone to asterisk, and in the asterisk box I have a TE110P > card connected to a E1. When a SIP client makes a call through the E1, I > received no dialtone in the SIP client. > In the same manner, when somebody from the POTS network makes a call to a > SIP client (through * and the E1) he doesn't receive the apropiate tone of > call progress. Does anyone has some ideas about this? Are you talking about an ISDN E1 or another form of E1? On isdn dialtone is an optional feature of the specification and there are many implementations of isdn. I think it is mandatory on EuroISDN. Since asterisk normally generates the dialtone itself there should be little nead for the dialtone from the pstn. We use the dialtone from the network ourselves, but asterisk could provide it as well. In band call progress is also a feature of the net on isdn. If the net does not provide it you will have to do so yourself. Just add the proper options to Dial to generate ringback and if the call fails you generate the matching sound (Busy etc). Peter _______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com 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 Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users