28.09.2017 Not enough DSP resources

На 2911 при попытке создать pri-group система выдала сообщение:

voice-gw01(config)#controller E1 0/0/0      
voice-gw01(config-controller)# pri-group timeslots 1-31
% Not enough DSP resources available to configure pri-group on controller E1 0/0/0
% The remaining dsp resources are enough for 24 time slots.
% For current codec complexity, 1 extra  dsp(s) are required to create this voice port.

При этом:

voice-gw01#show inventory 
NAME: "C2911R-CME-SRST/K9", DESCR: "C2911R-CME-SRST/K9 chassis, Hw Serial#: JTV1749TBS5, Hw Revision: 1.0"
PID: C2911R-CME-SRST/K9, VID: V07 , SN: JTV1749TBS5

NAME: "VWIC3-2MFT-T1/E1 - 2-Port RJ-48 Multiflex Trunk - T1/E1 on Slot 0 SubSlot 0", DESCR: "VWIC3-2MFT-T1/E1 - 2-Port RJ-48 Multiflex Trunk - T1/E1"
PID: VWIC3-2MFT-T1/E1  , VID: V01 , SN: FOC18132Y9G

NAME: "3rd generation four port FXS DID voice interface daughtercard on Slot 0 SubSlot 1", DESCR: "3rd generation four port FXS DID voice interface daughtercard"
PID: VIC3-4FXS/DID     , VID: V03 , SN: FOC181640US

NAME: "2nd generation four port FXO voice interface daughtercard on Slot 0 SubSlot 2", DESCR: "2nd generation four port FXO voice interface daughtercard"
PID: VIC2-4FXO         , VID: V04 , SN: FOC1814AMFK

NAME: "PVDM3 DSP DIMM with 16 Channels on Slot 0 SubSlot 4", DESCR: "PVDM3 DSP DIMM with 16 Channels"
PID: PVDM3-16          , VID: V01 , SN: FOC17385PQ7

NAME: "PVDM3 DSP DIMM with 16 Channels on Slot 0 SubSlot 5", DESCR: "PVDM3 DSP DIMM with 16 Channels"
PID: PVDM3-16          , VID: V01 , SN: FOC18126DFM

NAME: "C2911 AC Power Supply", DESCR: "C2911 AC Power Supply"
PID: PWR-2911-AC       , VID: V05 , SN: DCA1717R00B

Можно создать pri-group только на 24 слота, хотя доступно 32 PVDM.
Выяснилось что PVDM жрёт платы VIC3-4FXS/DID и VIC2-4FXO, т.к. в нулевой конфигурации всё равно используются 8 DSP:

voice-gw01#show voice dsp group all
DSP groups on slot 0:
dsp 1:
  State: UP, firmware: 44.2.2
  Max signal/voice channel: 16/16
  Max credits: 240, Voice credits: 240, Video credits: 0
  num_of_sig_chnls_allocated: 8
  Transcoding channels allocated: 0
  Group: FLEX_GROUP_VOICE, complexity: FLEX
    Shared credits: 240, reserved credits: 0
    Signaling channels allocated: 8
    Voice channels allocated: 0
    Credits used (rounded-up): 0
  Slot: 0
  Device idx: 0
  PVDM Slot: 0
  Dsp Type: SP2600 

dsp 7:
  State: UP, firmware: 44.2.2
  Max signal/voice channel: 16/16
  Max credits: 240, Voice credits: 240, Video credits: 0
  num_of_sig_chnls_allocated: 0
  Transcoding channels allocated: 0
  Group: FLEX_GROUP_VOICE, complexity: FLEX
    Shared credits: 240, reserved credits: 0
    Signaling channels allocated: 0
    Voice channels allocated: 0
    Credits used (rounded-up): 0
  Slot: 0
  Device idx: 0
  PVDM Slot: 1
  Dsp Type: SP2600 

Как выход: либо убрать интерфейсы FXS/FXO либо поставить ещё PVDM