[Asterisk-Users] controlling SIP subscriptions from SNOM phones

[Alexander Lopez]

It may be better to change it to NOTICE instead of ERROR. You would want
to know it you are trying to subscribe to an unknown 'hint', misconfigs
or lack of should cause NOTICE instead of ERROR.
 

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com 
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of 
> Joseph Rothstein
> Sent: Friday, January 06, 2006 2:57 PM
> To: asterisk-users at lists.digium.com
> Subject: [Asterisk-Users] controlling SIP subscriptions from 
> SNOM phones
> 
> We recently deployed 10 SNOMs as part of a PBX hosted 
> solution. We have one phone setup as the receptionist phone, 
> using hints to show busy office lines. This all works as expected.
> 
> This is a new installation, and people are just starting to 
> setup their phones. For those of you not familiar with SNOM 
> phones, there is a row of keys on the right side of the phone 
> which SNOM calls function keys. In order to get the 
> receptionist phone to see the "hinted" extensions, you have 
> to set DESTINATION and the extension in the SNOM setup web 
> page. This causes the receptionist phone to issue SIP 
> SUBSCRIBE messages for the state of these extensions. 
> 
> Now, one user, not the receptionist, has gone in and set his 
> personal numbers to these function keys thinking that 
> DESTINATION meant setting a number to dial out. So now I have 
> a ton of SIP SUBSCRIBE messages for his numbers.
> 
> I thought that in order for SIP SUBSCRIBE to work, I had to 
> use 's "subscribecontext=xxxxx" in the user's config in 
> sip.conf so that SIP peers could only subscribe to extensions 
> in that particular context. See the output below:
> 
> asterisk_test*CLI>
>      -- Registered SIP '959' at 82.135.81.211 port 5062 expires 3600
>      -- Saved useragent "snom320/4.4" for peer 959 Jan  6 20:11:29
> ERROR[8677]: chan_sip.c:10790
> handle_request_subscribe: Got SUBSCRIBE for extensions without hint.  
> Please add hint to 008971940494 in context sanset Jan  6 20:11:29
> ERROR[8677]: chan_sip.c:10790
> handle_request_subscribe: Got SUBSCRIBE for extensions without hint.  
> Please add hint to 0089956010 in context sanset Jan  6 
> 20:11:29 ERROR[8677]:
> chan_sip.c:10790
> handle_request_subscribe: Got SUBSCRIBE for extensions without hint.  
> Please add hint to 904 in context sanset Jan  6 20:11:29 ERROR[8677]:
> chan_sip.c:10790
> handle_request_subscribe: Got SUBSCRIBE for extensions without hint.  
> Please add hint to 001708130105 in context sanset Jan  6 20:11:29
> ERROR[8677]: chan_sip.c:10790
> handle_request_subscribe: Got SUBSCRIBE for extensions without hint.  
> Please add hint to 001709114321 in context sanset 
> asterisk_test*CLI> sip show peer 959 asterisk_test*CLI>
> 
>    * Name       : 959
>    Secret       : <Not set>
>    MD5Secret    : <Not set>
>    Context      : sanset
>    Subscr.Cont. : <Not set>
>    Language     : de
>    Accountcode  : sanset
>    AMA flags    : Unknown
>    CallingPres  : Presentation Allowed, Not Screened
>    Callgroup    : >
>    Pickupgroup  : >
>    Mailbox      : 959 at sanset
>    ...
>    SIP Options  : (none)
>    Codecs       : 0x100 (g729)
>    Codec Order  : (g729)
>    Status       : Unmonitored
>    Useragent    : snom320/4.4
>    Reg. Contact : sip:959 at 192.168.0.4:5062;line=uq15mxj7
> 
> I would think that if there is no subscribecontext set, that 
> Asterisk should ignore these subscribe messages instead of 
> creating an error. I know that subscribe is not complete in 
> Asterisk, so I am thinking that this is a bug.
> 
> Has anyone else had this same problem? Or know of a way 
> around this? Would setting the LINE option on the web page 
> work for callout? 
> 
> Regards to all,
> Joe
> 
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