Voice over IP (VoIP) Stack

VOIP(4) provides an introductory manual page for VoIP stack components and interfaces. You can also select one of the component or interface sections from the diagram below:

Components

Interfaces

Components

VoIP Stack Manager

This section provides a roadmap to Manual Pages for Voice over IP (VoIP) Stack Manager (VoIP SM).

Bearer Independent Call Control (BICC)

This section provides a roadmap to Manual Pages for Bearer Independent Call Control (BICC).

Session Initiation Protocol Transport (SIPT)

This section provides a roadmap to Manual Pages for Session Initiation Protocol (SIP) Transport (SIP-T).

H.323/225 Call Control

This section provides a roadmap to Manual Pages for H.323/225 Call Control.

CCI-SIPT

Section: Call Control Interface (CCI) (7)
Updated: 2008-10-31
Index Return to Main Contents

NAME

CCI-SIPT - Call Control Interface - Corrgendum for SIP-T Conformance

SYNOPSIS

#include <ss7/cci.h>
#include <ss7/sipt.h>
#include <ss7/sipt_ioctl.h>

int sipt_stream = open(/dev/sipt, flags);

DESCRIPTION

This Corrigendum describes the formats and rules that are specific to SIP-T[1]. The Corrigendum must be used along with the generic CCI as defined in the main document when implementing a CCS provider that will be configured with the SIP-T call processing layer.

Primitives and Rules for SIP-T Conformance

The following are the rules that apply to the CCI primitives for SIP-T compatibility.

CALL CONTROL ADDRESSES

Format

The format of call control addresses is as follows:

Parameters

cc_addr_length:: Specifies or indicates the length of the call control address. If a call control address is not included in the primitive, this parameter must be coded zero (0).
cc_addr_offset:: Specifies or indicates the offset of the address from the begining of the primitive. If a call control address is not included with the primitive, this parameter must be coded zero (0).

Address Format

The format of the call control addresses for Q.764 conforming CCS providers is as follows:

typedef struct sipt_addr {
} sipt_addr_t;

Address Fields

OPTIONAL PARAMETERS

Format

The format of the optional parameters for SIP-T conforming CCS providers is as follows:

Parameters

cc_opt_length:: Specifies or indicates the length of the optional parameters associated with the primitive. For SIP-T conforming CCS providers, the format of the optional parameters is the format of the Optional Headers as specified in SIP-T.
cc_opt_offset:: Specifies the offset of the optional parameters from the beginning of the block.

Rules

Rules for optional parameters:

---: The optional parameters provided by the CCS user may be checked for syntax by the CCS provider. If the CCS provider discovers a syntax error in the format of the optional parameters, the CCS provider should respond with a CC_ERROR_ACK(7) primitive with error [CCBADOPT].
---: For some primitives, specific optional parameters might be interpreted by the CCS provider and alter the function of some primitives. See the specific primitive descriptions later in this Corrigendum.
---: Except for optional parameters interpreted by the CCS provider as specified later in this Corrigendum, the optional parameters are treated as opaque and the optional parameter list is only checked for syntax. Opaque parameters will be passed to the SIP message without examination by the CCS provider.
---: To perform specific functions, additional optional parameters may be added to SIP-T messages by the CCS provider.
---: To perform specific functions, optional parameters may be modified by the CCS provider before being added to SIP-T messages.

Local Management Primitives

CC_INFO_ACK

CC_BIND_REQ

CC_BIND_ACK

CC_OPTMGMT_REQ

Call Setup Primitives

CC_SETUP_REQ

CC_SETUP_IND

CC_SETUP_RES

CC_SETUP_CON

CC_CALL_REATTEMPT_IND

CC_SETUP_COMPLETE_REQ

CC_SETUP_COMPLETE_IND

Continuity Check Phase

CC_CONT_CHECK_REQ

CC_CONT_CHECK_IND

CC_CONT_TEST_REQ

CC_CONT_TEST_IND

CC_CONT_REPORT_REQ

CC_CONT_REPORT_IND

Call Establishment Primitives

CC_MORE_INFO_REQ

CC_MORE_INFO_IND

CC_INFORMATION_REQ

CC_INFORMATION_IND

CC_INFO_TIMEOUT_IND

CC_PROCEEDING_REQ

CC_PROCEEDING_IND

CC_ALERTING_REQ

CC_ALERTING_IND

CC_PROGRESS_REQ

CC_PROGRESS_IND

CC_IBI_REQ

CC_IBI_IND

Call Established Primitives

CC_SUSPEND_REQ

CC_SUSPEND_IND

CC_SUSPEND_RES

CC_SUSPEND_REJECT_REQ

CC_RESUME_REQ

CC_RESUME_IND

CC_RESUME_RES

CC_RESUME_REJECT_REQ

Call Termination Primitives

CC_REJECT_REQ

CC_CALL_FAILURE_IND

CC_DISCONNECT_REQ

CC_RELEASE_REQ

CC_RELEASE_IND

Management Primitives

CC_RESTART_REQ

CC_RESET_REQ

CC_RESET_IND

CC_RESET_RES

CC_RESET_CON

CC_BLOCKING_REQ

CC_BLOCKING_IND

CC_BLOCKING_RES

CC_BLOCKING_CON

CC_UNBLOCKING_REQ

CC_UNBLOCKING_IND

CC_UNBLOCKING_RES

CC_UNBLOCKING_CON

CC_QUERY_REQ

CC_QUERY_IND

CC_QUERY_RES

CC_QUERY_CON

FILES

<ss7/cci.h>, <ss7/cci_ioctl.h>.

REFERENCES

[1]: BCP 63/RFC 3372, Session Initiation Protocol for Telephones (SIP-T): Context and Architectures, September 2002, Aparna Vemuri, ed., The Internet Society. <http://www.ietf.org/rfc/bcp/bcp63.txt>