Chapter 4 Managing the Cisco HSI

Measurements

Table 4-2 Q.931 Counter Group

Counter Name

Measurement

Type

Comments

 

 

 

 

FC_INC_CALL_ATT_TOT

H.225 Incoming Fast

Integer

Incremented when a setup containing the fastStart

 

Connect Call Attempts

 

element is received.

 

 

 

 

FC_INC_CALL_SUCC_TOT

H.225 Incoming Fast

Integer

Incremented when the Fast Connect procedure is

 

Connect Call Successes

 

used to establish an incoming H.323 call.

 

 

 

 

FC_OTG _CALL_ATT_TOT

H.225 Outgoing Fast

Integer

Incremented when a setup containing the fastStart

 

Connect Call Attempts

 

element is sent to an H.323 endpoint.

 

 

 

Decremented when you revert to Version 1 signaling

 

 

 

(another measurement incremented).

 

 

 

 

FC_OTG_CALL_SUCC_TOT

H.225 Outgoing Fast

Integer

Incremented when the Fast Connect procedure is

 

Connect Call Successes

 

used to establish an outgoing H.323 call.

 

 

 

 

V1_INC_CALL_ATT_TOT

H.225 Incoming Version 1

Integer

Incremented when an incoming H.323 Version 1

 

Call Attempts

 

Setup is received (that is, no fastStart element or

 

 

 

H.245 tunneling).

 

 

 

 

V1_INC_CALL_SUCC_TOT

H.225 Incoming Version 1

Integer

Incremented when an incoming H.323 Version 1 call

 

Call Successes

 

is established.

 

 

 

 

V1_OTG_CALL_ATT_TOT

H.225 Outgoing Version 1

Integer

Incremented when an outgoing H.323 call reverts to

 

Call Attempts

 

Version 1 signaling.

 

 

 

 

V1_OTG_CALL_SUCC_TOT

H.225 Outgoing Version 1

Integer

Incremented when an outgoing H.323 call using

 

Call Successes

 

Version 1 is established.

 

 

 

 

INC_NORM_REL_TOT

H.225 Incoming Call

Integer

Incremented when an established incoming H.323

 

Normal Releases

 

call is taken down due to user on-hook.

 

 

 

 

INC_ABNORM_REL_TOT

H.225 Incoming Call

Integer

Incremented when an established incoming H.323

 

Abnormal Releases

 

call is taken down due to anything other than user

 

 

 

on-hook.

 

 

 

 

OTG_NORM_REL_TOT

H.225 Outgoing Call

Integer

Incremented when an established outgoing H.323

 

Normal Releases

 

call is taken down due to user on-hook.

 

 

 

 

OTG_ABNORM_REL_TOT

H.225 Outgoing Call

Integer

Incremented when an established outgoing H.323

 

Abnormal Releases

 

call is taken down due to anything other than user

 

 

 

on-hook.

 

 

 

 

PGW_T38_FAX_ATT_TOT

Q931

Integer

Incremented for each T.38 Fax Call request from the

 

 

 

PGW. Collection Intervals are provisionable (default

 

 

 

is 12 hours).

 

 

 

 

PGW_T38_FAX_SUCC_TOT

Q931

Integer

Incremented for each T.38 Fax Call request from the

 

 

 

PGW that is successfully reconfigured for T.38.

 

 

 

Collection Intervals: Provisionable (default 12 hours)

 

 

 

 

H323_INTERWORK_SUCC_

Q931

Integer

Incremented for each successful H.323-H.323

 

 

 

interworking condition. Collection Intervals are

 

 

 

provisionable (default is 12 hours).

 

 

 

 

 

Cisco H.323 Signaling Interface User Guide

4-4

OL-4806-01 Rev. A14

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Cisco Systems H.323 Fcinccallatttot, Fcinccallsucctot, Fcotg Callatttot, Fcotgcallsucctot, V1INCCALLATTTOT, Incnormreltot
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H.323 specifications

Cisco Systems H.323 is a set of standards designed for transmitting audio, video, and data over packet-switched networks. It is a critical technology that enables real-time communication and has become integral to the world of VoIP (Voice over Internet Protocol) and video conferencing applications. Originally developed by the ITU-T, H.323 has been widely adopted and implemented by Cisco Systems, allowing organizations to leverage reliable and scalable communication solutions.

One of the standout features of H.323 is its ability to support interoperability among varying equipment and platforms. This means that devices from different manufacturers can communicate seamlessly, which is vital in a diverse technical environment. H.323 does this by defining protocols that handle signaling, media transport, and control, ensuring that various systems can work together effectively.

Key technologies utilized within H.323 include H.225 and H.245 signaling protocols. H.225 is responsible for call setup and management, establishing communication between endpoints. In contrast, H.245 manages the negotiation of media channels, allowing devices to configure themselves based on the capabilities of each other. This adaptability is crucial for dynamic network conditions typical in VoIP applications.

Another defining characteristic of H.323 is its support for multiple types of multimedia communication, including point-to-point and multipoint calls. This flexibility supports everything from simple audio calls to complex videoconferencing setups, where many participants can share video and audio streams concurrently. Cisco enhances this capability through its hardware and software offerings, optimizing performance for conference calls.

H.323 also features robust error resilience mechanisms. This ensures that real-time data, which is typically sensitive to delays and losses, can be transmitted with minimal disruption. Moreover, it facilitates quality of service (QoS) implementation, allowing organizations to prioritize voice and video traffic over less critical data services, thereby improving the overall user experience.

In conclusion, Cisco Systems H.323 stands out as a comprehensive solution for real-time communication over packet-based networks. Its main features, including interoperability, multimedia support, and enhanced error resilience, position it as a relevant technology in both corporate and personal communication settings. As organizations continue to adopt cloud and hybrid communication models, H.323 remains a reliable backbone for ensuring connectivity and collaboration across diverse platforms.
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