https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cata/186_188/2_15_ms/english/administration/guide/sccp/sccp/sccpaape.html

Для работы Cisco ATA-186, 188
обновление прошивки 
--- linux 
/sata186us.linux -any -d3 ATA030204SCCP090202A.zup

Для работы Cisco ATA-186, 188  может потребоваться файл atadefault.cfg
---------- Config 
cfgfmt.linux atadefault.txt atadefault.cfg 


----------------------begin atadefault.txt ---------------------
#txt
UIPassword:0
UseTftp:1
TftpURL:0
cfgInterval:3600
EncryptKey:0
ToConfig:0
upgradecode:0,0x301,0x0400,0x0200,0.0.0.0,69,0,none
upgradelang:0,0x301,0x0400,0x0200,0.0.0.0,69,0,none
Dhcp:1
StaticIp:0
StaticRoute:0
StaticNetMask:0
CA0orCM0:172.30.122.41:2000
CA1orCM1:0
CA0UID:0
CA1UID:0
EPID0orSID0:.
EPID1orSID1:.
PrfCodec:1
LBRCodec:3
AudioMode:0x00350035
NumTxFrames:2
CallerIdMethod:0x00019e60
ConnectMode:0x90000400
DNS1IP:0.0.0.0
DNS2IP:0.0.0.0
UDPTOS:0xA0
RingCadence:2,4,25
DialTone:2,31538,30831,1380,1740,1,0,0,0
BusyTone:2,30467,28959,1191,1513,0,4000,4000,0
ReorderTone:2,30467,28959,1191,1513,0,2000,2000,0
RingBackTone:2,30831,30467,1943,2111,0,16000,32000,0
CallWaitTone:1,30831,0,5493,0,0,2400,2400,4800
ConfirmTone:1,30467,0,5970,0,0,480,480,1920
MediaPort:16384
UseMGCP:0
MGCPPort:2427
RetxIntvl:500
RetxLim:7
MGCPVer:MGCP1.0
NPrintf:0
TraceFlags:0x00000000
SigTimer:0x00000064
CodecName:PCMU,PCMA,G723,G729
OpFlags:0x2
VLANSetting:0x0000002b
-----------------------end atadefault.txt ------------------