@TouchToneTommy, yep. Made sure the lines are set to bothway for each of the pot lines.
@Okkie26, I did notice that when calling out on the third time I hear 5 quick beeps. The display doesn't show anything except the number I'm call out to but based on the system monitor data the the beeping (5) is due to error WAITING_FOR_LINE although I'm not sure. I don't think its the provider since we're able to receive multiple incoming calls. Here is the attachment when the beeping happens. I'm not an expert but I believe the EEEEE is the beeps and the main error is either CMARS_OUTOFSERVICE or WAITING_FOR_LINE.
Any thoughts?
13:11:56 259407407mS CMARS: Retarget existing BUSY targets - Num of Busy Targets: 1 - Current Form: Main
13:11:56 259407407mS CMMap: a=21.8 b=0.0 DTMF::AllocateRAS allocated CMRTTonegen resource busy 7, total 8
13:11:56 259407407mS CMMap: a=21.8 b=1.255 T
13:11:56 259407408mS CMMap: PCG::MapBChan pcp[96]b1r0 cp_b f52c9b74 other_cp_b f59bf324 type CGTypeDTMF
13:11:56 259407408mS CMMap: a=21.8 b=0.1 M22
13:11:56 259407408mS CMMap: DTMF:

layTones g T[554] ,
EEEEE
13:11:56 259407408mS CMMap: Started playing tones, cp[96]b1r0 (from g null)
13:11:56 259407408mS CMMap: cp[96]b1r0 SetOperGroup from g null to g null not executed, playing tones in progress ,EEEEE
13:11:56 259407753mS RES: Fri 15/3/2019 13:11:56 FreeMem=59986164(1) CMMsg=6 (8) Buff=5200 944 1000 12463 5 Links=7821 BTree=0 CPU=1/3/3612/22870/27829/2
13:11:56 259407754mS RES2: IP 500 V2 8.1(63) Tasks=48 RTEngine=0 CMRTEngine=0 ExRTEngine=0 Timer=49 Poll=0 Ready=0 CMReady=0 CMQueue=0 VPNNQueue=0 Monitor=2 SSA=0 TCP=14 TAPI=0 ASC=1 SYS=MNTD OPT=UMNT SDSPD=2034
13:11:56 259407754mS RES4: XML MemObjs=45 PoolMem=2097152(1) FreeMem=2082064(1)
13:11:58 259409229mS CMMap: PCG::UnmapBChan pcp[96]b1r0 cp_b f52c9b74 other_cp_b f59bf324
13:11:58 259409229mS CMMap: a=21.8 b=0.1 M02
13:11:58 259409229mS CMMap: a=21.8 b=0.0 T0
13:11:58 259409229mS CMMap: a=21.8 b=0.0 DTMF::~DTMF freed CMRTTonegen resource busy 6, total 8
13:12:02 259413407mS CMARS: Retarget existing BUSY targets - Num of Busy Targets: 1 - Current Form: Main
13:12:02 259413407mS CMARS:
Target: Short_Code: 1N; - Line_Group_ID: 0 - Telephone_Number: 1N - Line_Status: CMARS_OUTOFSERVICE
13:12:02 259413407mS CMARS: Retarget result=CMARSTargetingBusy
13:12:02 259413408mS CMCallEvt: 0.3297.0 495 ARS for Main: StateChange: END=B CMCSAccept->CMCSRinging
13:12:02 259413408mS CMExtnTx: v=501, p1=0
CMProgress
Line: type=DigitalExtn 2 Call: lid=0 id=3295 in=0
IE CMIEProgressIndicator (30) cs=CMCSITUT (0), loc=CMLUser (0), pd=CMPDInbandPattern (8)
Display [WAITING_FOR_LINE]
Timed: 15/03/19 13:12