请教关于通话中所有电话突然断线问题

pri信令，1 个中继，呼叫过程中经常有如下日志，是不是有什么问题
[May 22 15:00:31] ERROR[5551] chan_zap.c: !! Got reject for frame 121, retransmitting frame 121 now, updating n_r! [May 22 15:00:31] ERROR[5551] chan_zap.c: !! Got reject for frame 121, retransmitting frame 122 now, updating n_r! [May 22 15:00:31] ERROR[5551] chan_zap.c: !! Got reject for frame 121, retransmitting frame 123 now, updating n_r!

先检查中断是否正常(zttest -vvv)，然后检查时钟设置正确否(zaptel.conf)，然后检查E1接头是否松动。

[root@localhost ~]# zttest -vv
Opened pseudo zap interface, measuring accuracy...

8192 zaptel samples in 8191.032 system clock sample intervals (99.988%)
8192 zaptel samples in 8191.648 system clock sample intervals (99.996%)
8192 zaptel samples in 8191.392 system clock sample intervals (99.993%)
8192 zaptel samples in 8208.960 system clock sample intervals (100.207%)
8192 zaptel samples in 8175.600 system clock sample intervals (99.800%)
8192 zaptel samples in 8190.376 system clock sample intervals (99.980%)
8192 zaptel samples in 8192.168 system clock sample intervals (100.002%)
8192 zaptel samples in 8190.648 system clock sample intervals (99.983%)
8192 zaptel samples in 8192.264 system clock sample intervals (100.003%)
8192 zaptel samples in 8192.008 system clock sample intervals (100.000%)
8192 zaptel samples in 8190.928 system clock sample intervals (99.987%)
8192 zaptel samples in 8191.392 system clock sample intervals (99.993%)
8192 zaptel samples in 8192.088 system clock sample intervals (100.001%)
8192 zaptel samples in 8191.672 system clock sample intervals (99.996%)
8192 zaptel samples in 8191.656 system clock sample intervals (99.996%)
8192 zaptel samples in 8190.680 system clock sample intervals (99.984%)
8192 zaptel samples in 8192.624 system clock sample intervals (100.008%)
8192 zaptel samples in 8191.977 system clock sample intervals (100.000%)
8192 zaptel samples in 8191.360 system clock sample intervals (99.992%)
8192 zaptel samples in 8191.672 system clock sample intervals (99.996%)
8192 zaptel samples in 8190.888 system clock sample intervals (99.986%)
8192 zaptel samples in 8192.448 system clock sample intervals (100.005%)
8192 zaptel samples in 8192.896 system clock sample intervals (100.011%)
8192 zaptel samples in 8190.552 system clock sample intervals (99.982%)
8192 zaptel samples in 8191.168 system clock sample intervals (99.990%)
8192 zaptel samples in 8191.384 system clock sample intervals (99.992%)
8192 zaptel samples in 8192.200 system clock sample intervals (100.002%)
8192 zaptel samples in 8192.624 system clock sample intervals (100.008%)
8192 zaptel samples in 8190.160 system clock sample intervals (99.978%)
8192 zaptel samples in 8191.904 system clock sample intervals (99.999%)
8192 zaptel samples in 8191.136 system clock sample intervals (99.989%)
8192 zaptel samples in 8191.849 system clock sample intervals (99.998%)
8192 zaptel samples in 8192.920 system clock sample intervals (100.011%)
8192 zaptel samples in 8190.992 system clock sample intervals (99.988%)
8192 zaptel samples in 8190.616 system clock sample intervals (99.983%)
8192 zaptel samples in 8191.656 system clock sample intervals (99.996%)
8192 zaptel samples in 8191.992 system clock sample intervals (100.000%)
8192 zaptel samples in 8191.728 system clock sample intervals (99.997%)
8192 zaptel samples in 8191.704 system clock sample intervals (99.996%)
8192 zaptel samples in 8190.968 system clock sample intervals (99.987%)
8192 zaptel samples in 8191.648 system clock sample intervals (99.996%)q
8192 zaptel samples in 8193.368 system clock sample intervals (100.017%)^H
8192 zaptel samples in 8190.264 system clock sample intervals (99.979%)
--- Results after 43 passes ---
Best: 100.000 -- Worst: 99.793 -- Average: 99.982421, Difference: 99.995234
[root@localhost ~]#



zaptel.conf
span = 1,1,0,ccs,hdb3
bchan = 1-15
dchan = 16
bchan = 17-31
defaultzone = cn
loadzone = cn

什么卡？zttest输出不太正常，有很多中断丢失和重复，能否检查一下E1线路。
还有，硬件和软件配置？(cpu/memory/linux version...)

卡d110p,软* 1.4.17,zaptel 1.4.10

Linux localhost.localdomain 2.6.18-53.el5xen #1 SMP Mon Nov 12 03:26:12 EST 2007 i686 i686 i386 GNU/Linux

cpu
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Core(TM)2 CPU 4300 @ 1.80GHz
stepping : 2
cpu MHz : 1795.527
cache size : 2048 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu tsc msr pae mce cx8 apic mtrr mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc pni monitor ds_cpl est tm2 cx16 xtpr lahf_lm
bogomips : 4490.55

processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Core(TM)2 CPU 4300 @ 1.80GHz
stepping : 2
cpu MHz : 1795.527
cache size : 2048 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 10

内存
MemTotal: 1933476 kB
MemFree: 460068 kB
Buffers: 64548 kB
Cached: 1072912 kB
SwapCached: 0 kB
Active: 821452 kB
Inactive: 520408 kB
HighTotal: 1196036 kB
HighFree: 235196 kB
LowTotal: 737440 kB
LowFree: 224872 kB
SwapTotal: 2031608 kB
SwapFree: 2031392 kB
Dirty: 1904 kB
Writeback: 0 kB
AnonPages: 204360 kB
Mapped: 26316 kB
Slab: 92996 kB
PageTables: 3896 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
CommitLimit: 2998344 kB
Committed_AS: 809672 kB
VmallocTotal: 114680 kB
VmallocUsed: 5856 kB
VmallocChunk: 106536 kB

e1原来都测试过，没有误码

刚才又有如下日志，又断线了
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 1
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 2
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 3
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 4
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 5
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 6
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 7
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 8
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 9
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 10
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 11
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 12
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 13
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 14
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 15
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 17
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 18
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 19
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 20
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 21
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 22
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 23
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 24
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 25
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 26
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 27
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 28
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 29
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 30
[May 22 15:26:48] NOTICE[5552] chan_zap.c: Alarm cleared on channel 31
[May 22 15:26:48] NOTICE[5551] chan_zap.c: PRI got event: No more alarm (5) on Primary D-channel of span 1
[May 22 15:26:48] ERROR[5551] chan_zap.c: !! Got S-frame while link down
[May 22 15:26:48] ERROR[5551] chan_zap.c: !! Got S-frame while link down
[May 22 15:26:48] ERROR[5551] chan_zap.c: !! Got S-frame while link down
[May 22 15:26:48] ERROR[5551] chan_zap.c: !! Got S-frame while link down
[May 22 15:26:48] ERROR[5551] chan_zap.c: !! Got S-frame while link down