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SIP incoming paging for SPA50X. What's the header format?

Hi, I have this Alert-Info header in my INVITE

Alert-Info: <http://x>;info=alert-autoanswer

for Intercom, paging.

This works fine with Linksys SPA2102 DTA.

But SPA50x didn't automatically answer the call.

I have Paging Serv enable under phone tab.

What else do I need to do for paging. Thanks

2 REPLIES
New Member

Re: SIP incoming paging for SPA50X. What's the header format?

There's two ways you can do this; multicast or individual.  I got both to work at one point, but I'm currently only using Multicast (through MulticastRTP in Asterisk).  I can give this a try over the weekend (if I remember), and let you know which header code does it.  Which PBX/Controller are you using?

New Member

Re: SIP incoming paging for SPA50X. What's the header format?

Hi, I have figured it out from another thread. http://homecommunity.cisco.com/t5/VoIP-Phones/SPA942-auto-answer-page-intercom-beeping-loudly/td-p/215064

I put

Call-Info: ;answer-after=0

and it works.

Thanks for your help.

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