Asterisk Page() application

Multicast page session on Bellman; it works.

   -- Executing [599@from-local-phones:1] Answer("SIP/512-0000000c", "") in new stack
 == Extension Changed 512[parkedcalls] new state InUse for Notify User 511 
      > 0x7f9870016160 -- Probation passed - setting RTP source address to 192.168.1.215:56414
   -- Executing [599@from-local-phones:2] Playback("SIP/512-0000000c", "abandon-all-hope") in new stack
   -- <SIP/512-0000000c> Playing 'abandon-all-hope.ulaw' (language 'en')
   -- Executing [599@from-local-phones:3] Page("SIP/512-0000000c", "MulticastRTP/basic/239.0.0.1:1234,d,30") in new stack
   -- Called basic/239.0.0.1:1234
   -- MulticastRTP/0x7f9838000cc8 answered
   -- <SIP/512-0000000c> Playing 'beep.gsm' (language 'en')
   -- Channel MulticastRTP/0x7f9838000cc8 joined 'softmix' base-bridge <0afd369f-8164-4f27-bf49-35edac65b0e5>
   -- Channel SIP/512-0000000c joined 'softmix' base-bridge <0afd369f-8164-4f27-bf49-35edac65b0e5>
   -- Channel SIP/512-0000000c left 'softmix' base-bridge <0afd369f-8164-4f27-bf49-35edac65b0e5>
   -- Channel MulticastRTP/0x7f9838000cc8 left 'softmix' base-bridge <0afd369f-8164-4f27-bf49-35edac65b0e5>
 == Spawn extension (from-local-phones, 599, 3) exited non-zero on 'SIP/512-0000000c'
 == Extension Changed 512[parkedcalls] new state Idle for Notify User 511 

On Vastra, where it does not:

 == Using SIP RTP CoS mark 5
   -- Executing [599@from-local-phones:1] Answer("SIP/103-0000000c", "") in new stack
   -- Executing [599@from-local-phones:2] Page("SIP/103-0000000c", "MulticastRTP/basic/239.0.0.1:1234,d,30") in new stack
   -- Called basic/239.0.0.1:1234
   -- MulticastRTP/0x7fad1c00cef8 answered
   -- <SIP/103-0000000c> Playing 'beep.gsm' (language 'en')
   -- Started music on hold, class 'default', on channel 'MulticastRTP/0x7fad1c00cef8'
   -- Channel MulticastRTP/0x7fad1c00cef8 joined 'softmix' base-bridge <44494f77-e896-4013-ba84-b9c0ed54a084>
      > 0x7fac88025a60 -- Probation passed - setting RTP source address to 67.180.204.170:5004
      > 0x7fac88025a60 -- Probation passed - setting RTP source address to 67.180.204.170:5004
   -- Stopped music on hold on MulticastRTP/0x7fad1c00cef8
   -- <SIP/103-0000000c> Playing 'conf-onlyone.gsm' (language 'en')
   -- Channel CBAnn/1317915804-00000005;2 joined 'softmix' base-bridge <44494f77-e896-4013-ba84-b9c0ed54a084>
   -- <CBAnn/1317915804-00000005;1> Playing 'conf-onlyone.gsm' (language 'en')
   -- Channel CBAnn/1317915804-00000005;2 left 'softmix' base-bridge <44494f77-e896-4013-ba84-b9c0ed54a084>
   -- Channel SIP/103-0000000c joined 'softmix' base-bridge <44494f77-e896-4013-ba84-b9c0ed54a084>
   -- Channel SIP/103-0000000c left 'softmix' base-bridge <44494f77-e896-4013-ba84-b9c0ed54a084>
   -- Started music on hold, class 'default', on channel 'MulticastRTP/0x7fad1c00cef8'
   -- Channel MulticastRTP/0x7fad1c00cef8 left 'softmix' base-bridge <44494f77-e896-4013-ba84-b9c0ed54a084>
   -- Stopped music on hold on MulticastRTP/0x7fad1c00cef8
 == Spawn extension (from-local-phones, 599, 2) exited non-zero on 'SIP/103-0000000c'