# SIP SUBSCRIBE request from asterisk

**URL:** <https://community.asterisk.org/t/sip-subscribe-request-from-asterisk/41287>\
**Category:** Asterisk Support\
**Created:** [December 10, 2012, 11:48am UTC](https://community.asterisk.org/t/sip-subscribe-request-from-asterisk/41287 "2012-12-10T11:48:15Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![danne](https://avatars.discourse-cdn.com/v4/letter/d/e19adc/32.png) [@danne](https://community.asterisk.org/u/danne)\
**Post date:** [December 10, 2012, 11:48am UTC](https://community.asterisk.org/t/sip-subscribe-request-from-asterisk/41287/1 "2012-12-10T11:48:15Z")

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Hi!

I’m trying to find out how the SUBSCRIBE/NOTIFY mechanism in asterisk is working.  
I want my asterisk box to send “SIP SUBSCRIBE” to a Cisco CUCM to ask for notifications.

The documentation seames to be focused on SUBSCRIBE/NOTIFY the other way round where asterisk is receiving subscription requests.

Anyone who knows anyting more about this?

Thanks!  
/Dan

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**Author:** ![david55](https://avatars.discourse-cdn.com/v4/letter/d/e19adc/32.png) [@david55](https://community.asterisk.org/u/david55)\
**Post date:** [December 10, 2012, 12:24pm UTC](https://community.asterisk.org/t/sip-subscribe-request-from-asterisk/41287/2 "2012-12-10T12:24:36Z")

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As far as I can tell, only message-summary type subscriptions are supported upstream.

Does CUCM actually support presence over SIP? I would expect them to charge per monitored address, if they do.