[Asterisk-Dev] how to fix this bug?E400P port2 and port 4 can not work

[oncemore]

how to fix this bug?E400P port2 and port 4 can not work

//this message from CTI

  == Primary D-Channel on span 2 down
Sep 23 12:36:39 WARNING[3369]: chan_zap.c:1938 pri_find_dchan: No D-channels available!  Using Primary on channel anyway 47!
  == Primary D-Channel on span 4 down
Sep 23 12:36:39 WARNING[3371]: chan_zap.c:1938 pri_find_dchan: No D-channels available!  Using Primary on channel anyway 109!
Sep 23 12:36:39 WARNING[3369]: chan_zap.c:7182 zt_pri_error: PRI: !! Got S-frame while link down
Sep 23 12:36:39 WARNING[3371]: chan_zap.c:7182 zt_pri_error: PRI: !! Got S-frame while link down



    -- Called g1/81203617
  == Primary D-Channel on span 2 up
  == Primary D-Channel on span 4 up
    -- Zap/1-1 is ringing
  == Primary D-Channel on span 2 up
  == Primary D-Channel on span 4 up
  == Primary D-Channel on span 2 up
  == Primary D-Channel on span 4 up
  == Primary D-Channel on span 2 up
  == Primary D-Channel on span 4 up
  == Primary D-Channel on span 2 down
Sep 23 12:37:37 WARNING[3369]: chan_zap.c:1938 pri_find_dchan: No D-channels available!  Using Primary on channel anyway 47!
  == Primary D-Channel on span 4 down
Sep 23 12:37:37 WARNING[3371]: chan_zap.c:1938 pri_find_dchan: No D-channels available!  Using Primary on channel anyway 109!
Sep 23 12:37:37 WARNING[3369]: chan_zap.c:7182 zt_pri_error: PRI: !! Got S-frame while link down
Sep 23 12:37:37 WARNING[3371]: chan_zap.c:7182 zt_pri_error: PRI: !! Got S-frame while link down



-----------------------------------------------------old rbt
 Reloading SIP
  == Parsing '/etc/asterisk/sip.conf': Found
    -- Reloading module 'chan_iax2.so' (Inter Asterisk eXchange (Ver 2))
  == Parsing '/etc/asterisk/iax.conf': Found
  == Loaded firmware 'iaxy.bin'
  == Parsing '/etc/asterisk/iaxprov.conf': Found
    -- Loaded provisioning template 'default'
    -- Reloading module 'app_voicemail.so' (Comedian Mail (Voicemail System))
  == Parsing '/etc/asterisk/voicemail.conf': Found
    -- Reloading module 'cdr_csv.so' (Comma Separated Values CDR Backend)
    -- Reloading module 'chan_local.so' (Local Proxy Channel)
    -- Reloading module 'chan_agent.so' (Agent Proxy Channel)
  == Parsing '/etc/asterisk/agents.conf': Found
    -- Executing Dial("SIP/2003-7585", "Zap/g2/81203617") in new stack
    -- Called g2/81203617
  == Primary D-Channel on span 2 down
Sep 23 12:46:28 WARNING[3568]: chan_zap.c:1938 pri_find_dchan: No D-channels available!  Using Primary on channel anyway 47!
    -- Hungup 'Zap/37-1'
  == No one is available to answer at this time
    -- Executing Hangup("SIP/2003-7585", "") in new stack
  == Spawn extension (default, 200, 2) exited non-zero on 'SIP/2003-7585'
Sep 23 12:46:31 WARNING[3568]: chan_zap.c:7182 zt_pri_error: PRI: !! Got S-frame while link down
  == Primary D-Channel on span 2 down
Sep 23 12:46:31 WARNING[3568]: chan_zap.c:1938 pri_find_dchan: No D-channels available!  Using Primary on channel anyway 47!
Sep 23 12:46:32 WARNING[3568]: chan_zap.c:7182 zt_pri_error: PRI: !! Got S-frame while link down
Sep 23 12:46:33 WARNING[3568]: chan_zap.c:7182 zt_pri_error: PRI: !! Got S-frame while link down
  == Primary D-Channel on span 4 down
Sep 23 12:46:34 WARNING[3570]: chan_zap.c:1938 pri_find_dchan: No D-channels available!  Using Primary on channel anyway 109!
Sep 23 12:46:34 WARNING[3570]: chan_zap.c:7182 zt_pri_error: PRI: !! Got S-frame while link down
Sep 23 12:46:34 WARNING[3568]: chan_zap.c:7182 zt_pri_error: PRI: !! Got S-frame while link down
  == Primary D-Channel on span 4 up