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Topic # 159864 15-Dec-2014 14:00
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Hi Team,

Our IP PBX has been having issues in the last couple of months when registering with 2Talk - it says it is registered but intermittently incoming calls go straight to 2Talk's voicemail.  I have been unable to resolve this even when rolling back to known stable config file versions, so we are trying out registering handsets directly.  I would love to get some new Panasonic handsets and use their centralised web portal for provisioning, but can't really justify tossing our perfectly good Snom handsets.

We are using mainly Snom 320 handsets.  Incoming and outgoing calls are working fine.  I have call transfers working acceptably using the Function keys (in this case P1 to P12).  What I don't have is the BLF working.  My Google-fu is weak today, so all thoughts/suggestions are welcome.  What I have been trying is the below.

In the GUI, the P1 line has the only active line selected in the first dropdown, the second dropdown is set to BLF, and the dialogue box for entering text has the following:
<sip:02801234567@sip.2talk.co.nz;user=phone>|*21*

Or if you look in the Settings area, the following line is defined:
fkey0!: blf <sip:02801234567@sip.2talk.co.nz;user=phone>|*21*

I have checked on 2Talk's console that both of the extensions are in the same "Line Group ID" under Line Manager, and I have set "Presence & BLF" to ENABLED for all accounts.

I also want some music on hold, though have yet to look into that but any experienced thoughts would be welcome.

Thanks in advance.




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  Reply # 1197973 15-Dec-2014 17:39
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No idea on the syntax for Snom sorry. But the call pickup code for 2Talk is *88. Google suggests that number after the | is the pickup code for the PABX so I would stick *88 in there.

If you have an internal PABX already why not try to figure out why that drops registrations? Probably end up being something simple like NAT issues, registration timeouts etc.

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  Reply # 1198099 15-Dec-2014 21:28
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what does the phones think, the busy lamps are set up as? as you may have them set as transfer only, not presence, transfer and speed dial buttons.

 
 
 
 




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  Reply # 1200457 19-Dec-2014 11:13
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Thanks for the feedback, team.

I'm interested to explore what I hope is enhanced reliability by reducing one potential point of failure.  There is a theoretical loss of functionality, but we don't use most of the PBX features.  In the last week we have had 100% reliability when registering the handsets directly with 2Talk.

The buttons are configured as "BLF"

I phoned 2Talk and they advise they only have guidance for Cisco phones.  They suggest looking for information around compatibility with Asterisk.




"4 wheels move the body.  2 wheels move the soul."

“Don't believe anything you read on the net. Except this. Well, including this, I suppose.” Douglas Adams



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  Reply # 1200548 19-Dec-2014 13:10
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Got it working at last.

Under the settings for the Identity, on the SIP tab, there is a "Server Type Support" field.  I understand this simply preconfigures some other settings for compatability with those systems.  I set this to Asterisk.  This seems to have been my main issue.

On the Function Keys page, the P1 button (for example) is configured as BLF with the following parameters:

<sip:028xxxxxxxx@sip.2talk.co.nz;user=phone>|*21

where the 028xxxxxxxx number is the 2Talk number on your account for which you want to subscribe to the BLF notifications and the number after the * is the number you wish to use for transferring calls using that button.  I could have used the same 028xxxxxxxx number, but in this case using 2Talk's Extension Dialling configuration area I have configured some short extension codes, mainly to make it easy to transfer calls from our cordless phones.

Other important notes/settings are that the numbers watching each other are on the same network (apparently - I've not tested this) and that under Line Manager on 2Talk's portal the extensions need to have the same "Line
Group ID", plus Presence and BLF needs to be enabled in the relevant area on their portal.




"4 wheels move the body.  2 wheels move the soul."

“Don't believe anything you read on the net. Except this. Well, including this, I suppose.” Douglas Adams

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