asterisk users - Oct 2013 - Call parking issue with Cisco SPA phone

I'm trying to implement call parking with asterisk and Cisco SPA504G phones:

features.conf
parkext => 700
parkpos => 701-702
context => parkedcalls



I defined one of the unused keys to park the calls: 
Key2:
fnc=sd;ext=700 at 10.0.1.103;vid=1;nme=Park

I also defined two other keys to pickup/unpark the calls:
Key3:
fnc=blf+sd+cp;sub=701 at 10.0.1.103

Key4:
fnc=blf+sd+cp;sub=702 at 10.0.1.103

Parking using these works smoothly. 
I answer the incoming call, press Key2 to park the call. Call is parked, Key3
turns red showing there is a parked call.
If I want to unpark the call, I hit Key3 and the call is unparked.

My problem happens when Key3 and Key4 are idle (no parked calls): 

I answer the incoming call and without first parking the car, I hit one of the
idle keys (Key3 or Key4), the phone sends a REFER message, and the incoming call
hangs up.

I'm trying to find out why the call hangs up and how to prevent that? 

Thanks,
Matt
 		 	   		  
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I'll answer my own question:

Setting "Keep Referee When REFER Failed" to  Yes on the Cisco phone
seems to do the trick.

From: mistral9999 at hotmail.com
To: asterisk-users at lists.digium.com
Date: Sun, 20 Oct 2013 11:56:17 -0400
Subject: [asterisk-users] Call parking issue with Cisco SPA phone




I'm trying to implement call parking with asterisk and Cisco SPA504G phones:

features.conf
parkext => 700
parkpos => 701-702
context => parkedcalls



I defined one of the unused keys to park the calls: 
Key2:
fnc=sd;ext=700 at 10.0.1.103;vid=1;nme=Park

I also defined two other keys to pickup/unpark the calls:
Key3:
fnc=blf+sd+cp;sub=701 at 10.0.1.103

Key4:
fnc=blf+sd+cp;sub=702 at 10.0.1.103

Parking using these works smoothly. 
I answer the incoming call, press Key2 to park the call. Call is parked, Key3
turns red showing there is a parked call.
If I want to unpark the call, I hit Key3 and the call is unparked.

My problem happens when Key3 and Key4 are idle (no parked calls): 

I answer the incoming call and without first parking the car, I hit one of the
idle keys (Key3 or Key4), the phone sends a REFER message, and the incoming call
hangs up.

I'm trying to find out why the call hangs up and how to prevent that? 

Thanks,
Matt
 		 	   		  

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