Hi all; I have been searching for an answer to a question that a customer asked me and I have only found a few older answers. So, wanting to find out if anyone has any experience with this issue and can help provide me with some advice. I have a customer which is strongly interested in using Asterisk as a PBX. One of the core requirements, however, is that the system MUST be able to support intercom/paging. Having searched the archives, it appears that this question was asked about 6 months ago, and the answer was that the Cisco phones support this using SCCP and having one line set to auto-answer, but at the time this was not supported in the SIP image. Is this still the case? Although I know that SIP is the preferred protocol for connecting these phones with Asterisk, how stable/reliable are the skinny channels? Is there any reason I should be rethinking this solution? Best Wishes, Chris Travers Metatron Technology Consulting -------------- next part -------------- A non-text attachment was scrubbed... Name: chris.vcf Type: text/x-vcard Size: 127 bytes Desc: not available Url : http://lists.digium.com/pipermail/asterisk-users/attachments/20040507/ed1108bd/chris.vcf
Carlton J. O'Riley
2004-May-07 09:19 UTC
[Asterisk-Users] Cisco 7940 Phones as paging system?
The SIP 6.1 image has auto answer available, which would function the same as the SCCP implementation. -----Original Message----- From: asterisk-users-admin@lists.digium.com [mailto:asterisk-users-admin@lists.digium.com] On Behalf Of Chris Travers Sent: Friday, May 07, 2004 12:02 PM To: asterisk-users@lists.digium.com Subject: [Asterisk-Users] Cisco 7940 Phones as paging system? Hi all; I have been searching for an answer to a question that a customer asked me and I have only found a few older answers. So, wanting to find out if anyone has any experience with this issue and can help provide me with some advice. I have a customer which is strongly interested in using Asterisk as a PBX. One of the core requirements, however, is that the system MUST be able to support intercom/paging. Having searched the archives, it appears that this question was asked about 6 months ago, and the answer was that the Cisco phones support this using SCCP and having one line set to auto-answer, but at the time this was not supported in the SIP image. Is this still the case? Although I know that SIP is the preferred protocol for connecting these phones with Asterisk, how stable/reliable are the skinny channels? Is there any reason I should be rethinking this solution? Best Wishes, Chris Travers Metatron Technology Consulting
Philipp von Klitzing
2004-May-07 09:57 UTC
[Asterisk-Users] Cisco 7940 Phones as paging system?
Hi!> able to support intercom/paging. Having searched the archives, it > appears that this question was asked about 6 months ago, and the answer > was that the Cisco phones support this using SCCP and having one line > set to auto-answer, but at the time this was not supported in the SIP > image. Is this still the case?Dunno about Cisco, but wanted to let you know that the recent Grandstream firmware (.55 and later) now also has an auto-answer option. Still I guess I should mention that the microphone of the GS phones in speakerphone mode is far from a brilliant implementation (-> echo for the remote speaker talker, and too thin sound from the person in the room). Cheers, Philipp
> I have been searching for an answer to a question that a customer asked > me and I have only found a few older answers. So, wanting to find out > if anyone has any experience with this issue and can help provide me > with some advice. > > I have a customer which is strongly interested in using Asterisk as a > PBX. One of the core requirements, however, is that the system MUST be > able to support intercom/paging. Having searched the archives, it > appears that this question was asked about 6 months ago, and the answer > was that the Cisco phones support this using SCCP and having one line > set to auto-answer, but at the time this was not supported in the SIP > image. Is this still the case? > > Although I know that SIP is the preferred protocol for connecting these > phones with Asterisk, how stable/reliable are the skinny channels? Is > there any reason I should be rethinking this solution?Apparently your search didn't find several other postings on the subject. The cisco v6.x sip releases also include the ability to "auto-answer" a call (required for phone paging), however some folks tend to suggest that is a security problem as anyone can call that autoanswer extn number and listen in on whatever is going on around the phone. There is no beep or other indication the phone/microphone is open. If your customer is looking for overhead (as in PA) paging, there are lots of postings relative to add-on hardware, etc, to do that. Use of the sound card within the * box has historically been hit/miss as not all sound cards are supported, etc. Rich
This is what we have for this customer. They have five phones right now. Their normal extensions are 610x, but for intercom its 510x: exten => 5101,1,Dial(SIP/5101,10,tA(intercom-tone)) exten => 5101,2,Congestion If you want the wav file, let me know. If you make your own, be sure to put a 1-2 second pause in the beginning, because when the cisco answers it takes a second or to before it will send any audio to the speaker. -----Original Message----- From: mitchel [mailto:totomds@yahoo.com] Sent: Friday, May 07, 2004 4:16 PM To: joe@jsci.net Subject: RE: [Asterisk-Users] Cisco 7940 Phones as paging system? Hey Joe, Could I get a sample config for playing some intro tones on the intercom? I have the same thing but nobody is using it now because they are afraid of having someone call in and "listen in" so we need some way to announce the incoming intercom call. Thanks, Mitchel Joe Antkowiak <> wrote: I am currently using 7960's with *, and line 6 is set to auto answer. Works great, customer is happy. As far as an intro-tone, you can set the dial command to play a sound (using the announce option) before the call is connected. I grabbed a simple tone wav file, and made it play that. Now, when the intercom ext is called, it plays the tone on the destination phone, and wa-la, intercom So it works. Let me know if you need sample configs. -----Original Message----- From: asterisk-users-admin@lists.digium.com [mailto:asterisk-users-admin@lists.digium.com] On Behalf Of Philipp von Klitzing Sent: Friday, May 07, 2004 12:57 PM To: asterisk-users@lists.digium.com Subject: Re: [Asterisk-Users] Cisco 7940 Phones as paging system? Hi!> able to support intercom/paging. Having searched the archives, it > appears that this question was asked about 6 months ago, and the answer > was that the Cisco phones support this using SCCP and having one line > set to auto-answer, but at the time this was not supported in the SIP > image. Is this still the case?Dunno about Cisco, but wanted to let you know that the recent Grandstream firmware (.55 and later) now also has an auto-answer option. Still I guess I should mention that the microphone of the GS phones in speakerphone mode is far from a brilliant implementation (-> echo for the remote speaker talker, and too thin sound from the person in the room). Cheers, Philipp _______________________________________________ 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 _____ Do you Yahoo!? Win <http://pa.yahoo.com/*http:/us.rd.yahoo.com/hotjobs/hotjobs_mail_signature_f ooter_textlink/evt=23983/*http:/hotjobs.sweepstakes.yahoo.com/careermakeover> a $20,000 Career Makeover at Yahoo! HotJobs-------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20040507/f1340cf3/attachment.htm