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Unable to make outbound calls using CUCM

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Celso Matule

IS-IT--Management
May 11, 2021
2
MZ
I am using CUCM with PSTN/E1.
I am able to receive calls (Inbound) but unable to make calls (Outbound), what can I do to resolve it?

When I receive calls:
May 11 18:47:44.559 GMT: ISDN Se0/1/0:15 Q931: RX <- SETUP pd = 8 callref = 0x69D3
Bearer Capability i = 0x8090A3
Standard = CCITT
Transfer Capability = Speech
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xA98383
Exclusive, Channel 3
Calling Party Number i = 0x1181, '258842912221'
Plan:ISDN, Type:International
Called Party Number i = 0xC1, '0957700'
Plan:ISDN, Type:Subscriber(local)
High Layer Compat i = 0x9181
Sending Complete
May 11 18:47:44.573 GMT: ISDN Se0/1/0:15 Q931: TX -> CALL_PROC pd = 8 callref = 0xE9D3
Channel ID i = 0xA98383



When I make calls (Unable):
May 11 18:49:02.876 GMT: ISDN Se0/1/0:15 Q931: TX -> SETUP pd = 8 callref = 0x0003
Sending Complete
Bearer Capability i = 0x8090A3
Standard = CCITT
Transfer Capability = Speech
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xA98394
Exclusive, Channel 20
Display i = 'IT'
Calling Party Number i = 0x0081, N/A
Plan:Unknown, Type:Unknown
Called Party Number i = 0x80
Plan:Unknown, Type:Unknown
May 11 18:49:02.921 GMT: ISDN Se0/1/0:15 Q931: RX <- STATUS pd = 8 callref = 0x8003
Cause i = 0x82E328 - Information element not implemented
Call State i = 0x01
 
What audible message do you get when trying to place an outbound call?

Certifications:
A+
Network+
CCENT
CCNA Voice
CCNP Voice
 
What do you expect?
You did not supply any called number in SETUP but send SETUP COMPLETE, i.e. "don't wait any more info from me".

Check this from your unsuccesful call:

Called Party Number i = 0x80
Plan:Unknown, Type:Unknown


Or you just deleted it for privacy reasons?

Checked your trace once more - opposite party complains about this element:
Display i = 'IT'

Check with the engineer from PSTN whether they can ignore not implemented IEs on their side.
 
What is your outbound dial peer configuration?

Pots dial peers absorb any matched digits by default e.g. if the pattern map is 1.... the 1 will be stripped.
could try adding no digit-strip to the dial peer so no digits are removed.

Voip dial peers don't strip digits.
 
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