Cisco IOS Voice Troubleshooting and Monitoring -- VoIP Cause Codes and Debug Values

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Use the following tables when reading debugs and the associated values within the debugs.

Guide Contents
Troubleshooting Cisco IOS Voice Overview
Debug Command Output on Cisco IOS Voice Gateways
Filtering Troubleshooting Output
Cisco VoIP Internal Error Codes
Troubleshooting Cisco IOS Voice Telephony
Troubleshooting Cisco IOS Voice Protocols
Troubleshooting Cisco IOS Telephony Applications
Monitoring the Cisco IOS Voice Network
Cause Codes and Debug Values

Contents

Q.931 Call Disconnection Causes

These are cause codes from the debug voip ccapi inout command.

Call Disconnection Cause Value (in Hex) Meaning and Number (in Decimal)

CC_CAUSE_UANUM = 0x1

Unassigned number (1)

CC_CAUSE_NO_ROUTE = 0x3

No route to destination (3)

CC_CAUSE_NORM = 0x10

Normal call clearing (16)

CC_CAUSE_BUSY = 0x11

User busy (17)

CC_CAUSE_NORS = 0x12

No user response (18)

CC_CAUSE_NOAN = 0x13

No user answer (19)

CC_CAUSE_REJECT = 0x15

Call rejected (21)

CC_CAUSE_INVALID_NUMBER = 0x1C

Invalid number (28)

CC_CAUSE_UNSP = 0x1F

Normal, unspecified (31)

CC_CAUSE_NO_CIRCUIT = 0x22

No circuit (34)

CC_CAUSE_NO_REQ_CIRCUIT = 0x2C

No requested circuit (44)

CC_CAUSE_NO_RESOURCE = 0x2F

No resource (47)

CC_CAUSE_NOSV = 0x3F

Service or option not available, or unspecified (63)


Codec Negotiation Values

These codec negotiation values are from the debug voip ccapi inout command.

Negotiation Value Meaning

codec=0x00000001

G711 ULAW 64K PCM

codec=0x00000002

G711 ALAW 64K PCM

codec=0x00000004

G729

codec=0x00000004

G729IETF

codec=0x00000008

G729a

codec=0x00000010

G726r16

codec=0x00000020

G726r24

codec=0x00000040

G726r32

codec=0x00000080

G728

codec=0x00000100

G723r63

codec=0x00000200

G723r53

codec=0x00000400

GSMFR

codec=0x00000800

G729b

codec=0x00001000

G729ab

codec=0x00002000

G723ar63

codec=0x00004000

G723ar53

codec=0x00008000

CLEAR_CHANNEL

Tone Types

Tone Types Meaning

CC_TONE_RINGBACK 0x1

Ring tone

CC_TONE_FAX 0x2

Fax tone

CC_TONE_BUSY 0x4

Busy tone

CC_TONE_DIALTONE 0x8

Dial tone

CC_TONE_OOS 0x10

Out of service tone

CC_TONE_ADDR_ACK 0x20

Address acknowledgement tone

CC_TONE_DISCONNECT 0x40

Disconnect tone

CC_TONE_OFF_HOOK_NOTICE 0x80

Tone indicating that the phone is off-hook

CC_TONE_OFF_HOOK_ALERT 0x100

A more urgent version of CC_TONE_OFF_HOOK_NOTICE

CC_TONE_CUSTOM 0x200

Custom tone-used when you are specifying a custom tone

CC_TONE_NULL 0x0

Null tone

FAX-Rate and VAD Capabilities Values

Values Meaning

CC_CAP_FAX_NONE 0x1

Fax disabled or not available

CC_CAP_FAX_VOICE 0x2

Voice call

CC_CAP_FAX_144 0x4

14,400 baud

CC_CAP_FAX_96 0x8

9,600 baud

CC_CAP_FAX_72 0x10

7,200 baud

CC_CAP_FAX_48 0x20

4,800 baud

CC_CAP_FAX_24 0x40

2,400 baud

CC_CAP_VAD_OFF 0x1

VAD disabled

CC_CAP_VAD_ON 0x2

VAD enabled

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