Unable to call a number that can be called from a personal phone.

[JBrav0]

An employee asked me that they aren't able to make a call to a couple of students. They were knew and thought she just did not type the correct format when making external calls. 

I asked for the phone numbers and tried calling them from my office phone, and wouldn't you know it, a message gets prompted that the phone numbers have been disconnected. These are local area numbers as well if that matters. I then decide to call them from my cell phone and the call goes through. 

Has anyone encountered this issue?  

[Jaime Valencia]

Start by looking at debugs from your GW to find out what's happening to the call, and maybe you'll need to ask your telco as there might be an interconnection between providers that is not working properly.

[JBrav0]

83So I had my phone provider check it out and the issue seems to be that its on slip alarm, meaning that our equipment is not in synch with there T1 line in there telephone switch. Possibly that our settings are set to Internal timing and should be switched to external. 

This stuff is over my head since we don't have an on prem employee to fix the issue, but at least I got some feedback. I think ill have to have it configured in voice gateway. 

If you know how that may be done and feel generous to give a lending hand I sure would appreciate it. 

Thank you!

[Nithin Eluvathingal]

whats your gateway model ? You may be missing network clock commands.

Could you share the below from gateway.

• Show Controller t1
• Show running configuration

[JBrav0]

Would this be enough? or do you need the entire config for each one? 

cisco ISR4331/K9

T1 0/1/0 is down.
Applique type is Channelized T1
Cablelength is long gain36 0db
Transmitter is sending remote alarm.
Receiver has loss of signal.
alarm-trigger is not set
Soaking time: 3, Clearance time: 10
AIS State:Clear LOS State:Failure LOF State:Clear
Framing is ESF, Line Code is B8ZS, Clock Source is Line Primary.
Data in current interval (409 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 409 Unavail Secs
Total Data (last 24 hours)
0 Line Code Violations, 0 Path Code Violations,
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 86400 Unavail Secs

T1 0/1/1 is down.
Applique type is Channelized T1
Cablelength is long gain36 0db
Transmitter is sending remote alarm.
Receiver has loss of frame.
alarm-trigger is not set
Soaking time: 3, Clearance time: 10
AIS State:Clear LOS State:Clear LOF State:Failure
Framing is ESF, Line Code is B8ZS, Clock Source is Line Secondary.
Data in current interval (408 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 408 Unavail Secs
Total Data (last 24 hours)
0 Line Code Violations, 0 Path Code Violations,
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 86400 Unavail Secs

controller T1 0/1/0
framing esf
clock source line primary
linecode b8zs
cablelength long 0db
pri-group timeslots 1-24 service mgcp
!
controller T1 0/1/1
framing esf
clock source line secondary
linecode b8zs
cablelength long 0db
pri-group timeslots 1-24 service mgcp

network-clock synchronization automatic
network-clock input-source 1 controller T1 0/1/0
network-clock input-source 2 controller T1 0/1/1
ntp master 3
ntp server 2.ciscosb.pool.ntp.org
ntp server devicehelper.cisco.com
ntp server 0.ciscosb.pool.ntp.org
ntp server 1.ciscosb.pool.ntp.org minpoll 10
ntp server 3.ciscosb.pool.ntp.org
!
end

-------------------------------------------

cisco ISR4331/K9

T1 0/1/0 is up.
Applique type is Channelized T1
Cablelength is long gain36 0db
No alarms detected.
alarm-trigger is not set
Soaking time: 3, Clearance time: 10
AIS State:Clear LOS State:Clear LOF State:Clear
Framing is ESF, Line Code is B8ZS, Clock Source is Line Primary.
Data in current interval (485 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Total Data (last 24 hours)
15329 Line Code Violations, 102 Path Code Violations,
39 Slip Secs, 37 Fr Loss Secs, 9 Line Err Secs, 0 Degraded Mins,
67 Errored Secs, 12 Bursty Err Secs, 3 Severely Err Secs, 64 Unavail Secs

T1 0/1/1 is down.
Applique type is Channelized T1
Cablelength is long gain36 0db
Transmitter is sending remote alarm.
Receiver has loss of frame.
alarm-trigger is not set
Soaking time: 3, Clearance time: 10
AIS State:Clear LOS State:Clear LOF State:Failure
Framing is ESF, Line Code is B8ZS, Clock Source is Line Secondary.
Data in current interval (484 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 484 Unavail Secs
Total Data (last 24 hours)
0 Line Code Violations, 0 Path Code Violations,
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 86400 Unavail Secs

controller T1 0/1/0
framing esf
clock source line primary
linecode b8zs
cablelength long 0db
pri-group timeslots 1-24 service mgcp
!

controller T1 0/1/1
framing esf
clock source line secondary
linecode b8zs
cablelength long 0db
pri-group timeslots 1-24 service mgcp

network-clock synchronization automatic
network-clock input-source 1 controller T1 0/1/0
network-clock input-source 2 controller T1 0/1/1
ntp master 3
ntp server devicehelper.cisco.com
ntp server 1.ciscosb.pool.ntp.org
ntp server 3.ciscosb.pool.ntp.org minpoll 10
ntp server 2.ciscosb.pool.ntp.org
ntp server 0.ciscosb.pool.ntp.org
!
end

-------------
Cisco VG310
no show controller t1

scheduler allocate 20000 1000
ntp master 3
ntp server devicehelper.cisco.com
ntp server 0.ciscosb.pool.ntp.org minpoll 9
ntp server 2.ciscosb.pool.ntp.org
ntp server 3.ciscosb.pool.ntp.org
ntp server 1.ciscosb.pool.ntp.org minpoll 10
!
end

[Nithin Eluvathingal]

15329 Line Code Violations, 102 Path Code Violations,
39 Slip Secs, 37 Fr Loss Secs, 9 Line Err Secs, 0 Degraded Mins,
67 Errored Secs, 12 Bursty Err Secs, 3 Severely Err Secs, 64 Unavail Secs

You have above mentioned  error on your Controller.You configurations looks good. You have configured  required  network clock commands. I would suggest to work with Your telco. 

[Nithin Eluvathingal]

As JAVA mentioned, Take debugs from gateway.It gives you more information about what digits you send to ISP and what's their  response.