Hi,
We currently have 2821 VGW platforms running E&M Immediate start. The T1s go into the DACS and the IP interface connects to the SIP server with a simple number plan.
So, when a T1 DS0 signals, the VGW talks to the SIP server, the SIP server does a database lookup and talks back to the VGW and passes the connection details.
However we are now migrating to the AS5350XM platform and replicating the config from the 2821 to the AS5350XM is causing signalling issues.
Here is a sample of the existing 2821 config:
voice rtp send-recv
!
voice service pots
!
voice service voip
sip
bind control source-interface GigabitEthernet0/0
bind media source-interface GigabitEthernet0/0
rel1xx disable
min-se 1700
!
voice class codec 1
codec preference 1 g711ulaw
codec preference 2 g729r8
!
!
controller T1 1/0
ds0-group 0 timeslots 1 type e&m-immediate-start
ds0-group 1 timeslots 2 type e&m-immediate-start
ds0-group 2 timeslots 3 type e&m-immediate-start
voice-port 1/0:0
define Tx-bits idle 1111
define Tx-bits seize 0000
define Rx-bits idle 1111
define Rx-bits seize 0000
timeouts wait-release 1
connection plar 1000
!
voice-port 1/0:1
define Tx-bits idle 1111
define Tx-bits seize 0000
define Rx-bits idle 1111
define Rx-bits seize 0000
timeouts wait-release 1
connection plar 1001
!
voice-port 1/0:2
define Tx-bits idle 1111
define Tx-bits seize 0000
define Rx-bits idle 1111
define Rx-bits seize 0000
timeouts wait-release 1
connection plar 1002
!
!
dial-peer voice 1000 pots
destination-pattern 1000
port 1/0:0
!
dial-peer voice 1001 pots
destination-pattern 1001
port 1/0:1
!
dial-peer voice 1002 pots
destination-pattern 1002
port 1/0:2
!
dial-peer voice 1 voip
preference 1
destination-pattern .T
session protocol sipv2
session target ipv4:192.168.150.2:5060
session transport udp
voice-class codec 1
voice-class sip options-keepalive retry 1
!
sip-ua
retry invite 2
timers trying 150
sip-server ipv4:192.168.150.2:5060
!
Here is the same on on the AS5350xm:
voice rtp send-recv
!
voice service pots
!
voice service voip
sip
bind control source-interface GigabitEthernet0/0
bind media source-interface GigabitEthernet0/0
rel1xx disable
min-se 1700 session-expires 1700
!
voice class codec 1
codec preference 1 g711ulaw
codec preference 2 g729r8
!
!
controller T1 3/0:1
framing ESF
ds0-group 0 timeslots 1 type e&m-immediate-start
ds0-group 1 timeslots 2 type e&m-immediate-start
ds0-group 2 timeslots 3 type e&m-immediate-start
cas-custom 0
define-abcd loop-open 1 1 1 1
define-abcd loop-closure 0 0 0 0
cas-custom 1
define-abcd loop-open 1 1 1 1
define-abcd loop-closure 0 0 0 0
cas-custom 2
define-abcd loop-open 1 1 1 1
define-abcd loop-closure 0 0 0 0
!
!
voice-port 3/0:1:0
timeouts wait-release 1
connection plar 1000
!
voice-port 3/0:1:1
timeouts wait-release 1
connection plar 1001
!
voice-port 3/0:1:2
timeouts wait-release 1
connection plar 1002
!
!
dial-peer voice 1000 pots
destination-pattern 1000
port 3/0:1:0
!
dial-peer voice 1001 pots
destination-pattern 1001
port 3/0:1:1
!
dial-peer voice 1002 pots
destination-pattern 1002
port 3/0:1:2
!
dial-peer voice 1 voip
preference 1
destination-pattern .T
session protocol sipv2
session target ipv4:192.168.150.2:5060
session transport udp
voice-class codec 1
voice-class sip options-keepalive retry 1
!
sip-ua
retry invite 2
timers trying 150
sip-server ipv4:192.168.150.2:5060
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
What I did notice was the following:
1) When defining loop open and loop closed custom bit configuration is different....on the 2821 you do it on the voice port. On the AS5350, it is not supported on the voice port but appears to be configurable via the T1 controller. I'm not sure if the AS5350 needs any further E&M signalling configuration as the problem lies in the signalling....the AS5350 when the line is cleared down appears to start ringing it again and not following the signalling pattern.
2) When doing a "show voice port" on the AS5350XM does not show E&M signalling, whereas it does on the 2821:
AS5350XM:
5350VGW#sh voice port
DS0 Group 3/0:1:0 - 3/0:1:0
Type of VoicePort is CAS
Operation State is DORMANT
Administrative State is UP
No Interface Down Failure
Description is not set
Noise Regeneration is enabled
Non Linear Processing is enabled
Non Linear Mute is disabled
Non Linear Threshold is -21 dB
Music On Hold Threshold is Set to -38 dBm
In Gain is Set to 0 dB
Out Attenuation is Set to 0 dB
Echo Cancellation is enabled
Echo Cancellation NLP mute is disabled
Echo Cancellation NLP threshold is -21 dB
Echo Cancel Coverage is set to 128 ms
Echo Cancel worst case ERL is set to 6 dB
Playout-delay Mode is set to adaptive
Playout-delay Nominal is set to 60 ms
Playout-delay Maximum is set to 1000 ms
Playout-delay Minimum mode is set to default, value 40 ms
Playout-delay Fax is set to 300 ms
Connection Mode is plar
Connection Number is 1000
Initial Time Out is set to 15 s
Interdigit Time Out is set to 10 s
Call Disconnect Time Out is set to 60 s
Ringing Time Out is set to 180 s
Wait Release Time Out is set to 1 s
Spe country is not configured
Region Tone is set for US
Station name None, Station number None
Translation profile (Incoming):
Translation profile (Outgoing):
lpcor (Incoming):
lpcor (Outgoing):
DS0 channel specific status info:
IN OUT
PORT CH SIG-TYPE OPER STATUS STATUS TIP RING
=============== == ============ ==== ====== ====== === ====
2821:
2821VGW#sh voice port
recEive and transMit Slot is 0, Subslot is 0, Sub-unit is 0, Port is 0
Type of VoicePort is E&M
Operation State is DORMANT
Administrative State is UP
No Interface Down Failure
Description is not set
Noise Regeneration is enabled
Non Linear Processing is enabled
Non Linear Mute is disabled
Non Linear Threshold is -21 dB
Music On Hold Threshold is Set to -38 dBm
In Gain is Set to 0 dB
Out Attenuation is Set to 0 dB
Echo Cancellation is enabled
Echo Cancellation NLP mute is disabled
Echo Cancellation NLP threshold is -21 dB
Echo Cancel Coverage is set to 128 ms
Echo Cancel worst case ERL is set to 6 dB
Playout-delay Mode is set to adaptive
Playout-delay Nominal is set to 60 ms
Playout-delay Maximum is set to 1000 ms
Playout-delay Minimum mode is set to default, value 40 ms
Playout-delay Fax is set to 300 ms
Connection Mode is plar
Connection Number is 1000
Initial Time Out is set to 15 s
Interdigit Time Out is set to 10 s
Call Disconnect Time Out is set to 60 s
Ringing Time Out is set to 180 s
Wait Release Time Out is set to 1 s
Companding Type is u-law
Rx A bit no conditioning set
Rx B bit no conditioning set
Rx C bit no conditioning set
Rx D bit no conditioning set
Tx A bit no conditioning set
Tx B bit no conditioning set
Tx C bit no conditioning set
Tx D bit no conditioning set
Rx Seize ABCD bits = 0000 Custom pattern
Rx Idle ABCD bits = 1111 Custom pattern
Tx Seize ABCD bits = 0000 Custom pattern
Tx Idle ABCD bits = 1111 Custom pattern
Ignored Rx ABCD bits = BCD
Region Tone is set for US
Analog Info Follows:
Currently processing none
Maintenance Mode Set to None (not in mtc mode)
Number of signaling protocol errors are 0
Station name None, Station number None
Translation profile (Incoming):
Translation profile (Outgoing):
lpcor (Incoming):
lpcor (Outgoing):
Voice card specific Info Follows:
Operation Type is 2-wire
E&M Type is 1
Signal Type is immediate
Dial Out Type is dtmf
In Seizure is inactive
Out Seizure is inactive
Digit Duration Timing is set to 100 ms
InterDigit Duration Timing is set to 100 ms
Pulse Rate Timing is set to 10 pulses/second
InterDigit Pulse Duration Timing is set to 750 ms
Clear Wait Duration Timing is set to 400 ms
Wink Wait Duration Timing is set to 200 ms
Wait Wink Duration Timing is set to 550 ms
Wink Duration Timing is set to 200 ms
Minimum received Wink Duration Timing is set to 140 ms
Maximun received Wink Duration Timing is set to 290 ms
Minimum seizure Timing is set to 50 ms
Delay Start Timing is set to 300 ms
Delay Duration Timing is set to 2000 ms
Dial Pulse Min. Delay is set to 140 ms
Percent Break of Pulse is 60 percent
Auto Cut-through is disabled
Dialout Delay is 300 ms
Hookflash-in Timing is set to 480 ms
Hookflash-out Timing is set to 400 ms
DS0 channel specific status info:
IN OUT
PORT CH SIG-TYPE OPER STATUS STATUS TIP RING
=============== == ============ ==== ====== ====== === ====
0/0/0:0 01 e&m-imd dorm idle idle
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Can anyone advise if further configuration is required on the AS5350XM in order to pass the E&M signalling correctly ?
