This is TikiWiki 1.9.7 -Sirius- © 2002–2006 by the Tiki community Thu 20 of Dec, 2007 [16:09 UTC]

ss7box Blog

print

2007-09-19 SMG Release

Woomera version v1.15 : SMG Version v1.18

ss7boost 1.0.0

Patch 00

  • ss7boost has been fielded tested long enough to change revision level to 1.0.0
  • redirection work still underway
  • adapted to gcc 4.1.1
  • per trunk group calling party category configuration

Patch 10

  • redirection field tested; works as designed; more requirements found

Patch 11

  • comm port to ss7box is SCTP protocol

Patch 13

  • redirection kludge; change redirection_indicator from "no_redirection" to "unused" so that a non-zero value appear in the field, thus forcing the redirection procedure to run even though the telco has indicated no redirection is occurring; it satisfies a odd situation in HK
  • SCTP port to ss7box

Patch 14

  • removed release cause translation; release cause in sigboost messages is a Q.850 value now

Patch 16 (2007-09-18 Tu)

  • hw block development
  • CGxx development; CGB/CGU reception works; CGxx sending works for unit testing

Patch 17 (2007-09-18 Tu)

  • remove sangoma_mgd stop control from ss7boost init

ss7boost Command Line Interface, Version: 1.0.1

  • output of --ckt-report display 4 hardware block causes

CDR Event Logger Revision 1.0.1

  • add calling number presentation indicator to call start record output

New SMG Release

2007-07-18

wget -c ftp://ftp.sangoma.com/linux/smg/smginstall-2007-07-17a.tgz


Conformance Testing

2007-05-24

ss7box and SMG/Asterisk is undergoing conformance testing with France Telecom. Other locations are queing up.

Support for 16 E1 per SMG platform is working now.

Call Redirection is being developed.

A test of SCTP between ss7boost and sangoma_mgd was successful. We expect to make wider use of SCTP in the near future to replace UDP in critical call-processing situations. SCTP is a critical technology needed for the Clustering feature.

Circuit Group maintenace messages reception, hardware blocking, manual circuit reset, linkset alignment (emergency vs normal), rejection of 64 kbs data calls, and COT during call setup are minor features are in development.

International Gateway Capability

2007-04-02

SMG has a new feature called NADI In Prefix to support per-call set/get of the Nature of Address for calling/called numbers on SS7 calls for inbound and outbound calling.

Support for CCR and continuity test indicator =1 in IAM is underway. CCR is lab tested and will be field tested soon.

Support for call redirection to follow soon.

Blocking per ckt is working now. Next up is acting on the CGB/CGU/GRS messages.

The clustering feature development preparations are underway. The lab configuration is part of larger effort to connect 8 SMG into a network of simplex and duplex nodes that include two cluster nodes. This configuration will allow all possible signaling configurations for development and regression testing. Developing this lab is not small feat in itself.

SMS project delivered, Blocking getting some field testing

2007-03-16

A minor detour into SCCP/TCAP/GSM/SMS in January turned into a valuable experience and a major detour. ss7boost now reads and writes SMS messages from the SMSC perspective. The SCCP and TCAP stacks had to be improved to do this project. Now they are in much better shape and they will be used to build SCCP/TCAP applications more rapidly in the future.

The BLO/BLA/UBL/UBA messages are in the unit tester now making it easy to perform the test cases that require precise control of message sending. All of the normal and abnormal test cases are documented with line-protocol diagrams and cross-checked with Q.764. Testing is underway and no major problems have been found so far. The individual circuit block/unblock/reset tests from Q.784 have been field conformance tested and passed.

There are conformance matrices under development for ss7box and ss7boost:
http://www.ss7box.com/wiki/tiki-index.php?page=ss7box+User+Manual#Conformance
http://www.ss7box.com/wiki/tiki-index.php?page=ss7boost+User+Manual#Conformance

Blocking Development Underway

2007-01-24

The specs have been read and re-read. The protocol diagrams have been drawn (56 cases at last count). Coding and testing have commenced. As of today the following have been tested:

  • ckt-report, ckt-block, and ckt-unblock commands function correctly. (This means the mechanics of the command itself, not the function of the command.)
  • ckt-report command correctly indicates in-use, local maintenance busy, and remote maintenance busy
  • ckt-block command for a single circuit correctly stimulated the block sending state machine * the block sending state machine operated correctly on an idle circuit
  • the block receiving state machine operated correctly on an idle circuit
  • the local maintenance blocked circuit was correctly avoided in call processing
  • the remote maintenance blocked circuit was correctly avoided in call processing

Next on the horizon is basic single circuit unblocking. Then tests on circuits in non-idle states will be tested, followed by abnormal and error cases. After that, the circuit group block/unblock reception state machines will be developed. We are still assessing the value of developing the circuit group block/unblock sending state machines.

There is a fix for MTP2. The timers were all set to hard-coded values. The user configured values are not being correctly assigned in the 0.2.42 release of xmtp2km.

2007-01-02 Happy New Year!

Thank you to all the SMG and ss7box users.

Sangoma Signal Media Gateway (SMG) with ss7box and ss7boost came a long way in 2006 and there's no letting up in 2007.

In 2006 we concentrated on the single platform configuration and pumping short calls through 8 E1 at 100% capacity for 7 days and succeeded. This is in an F-link configuration which is preferred by most operators in most of the world.

Our first half 2007 goals are to:
  • support multiple Asterisk boxes from a single or dual SS7 point of interface - a feature we call media gateway clustering
  • have ISUP blocking/unblocking support
  • support A-link combined linksets in ITU and ANSI SS7 flavors
  • offer a duplex SS7 platform configuration with failover/failback capability
  • integrate SMG with other media gateway applications such as:
    • Freeswitch
    • Opal
    • Sofa

Past Blogs

Created by: mike last modification: Friday 21 of September, 2007 [13:07:10 UTC] by mike


Menu [hide]
Toggle  Wiki
Powered by TikiWiki Powered by PHP Powered by Smarty Powered by ADOdb Made with CSS Powered by RDF
RSS Wiki
[ Execution time: 1.47 secs ]   [ Memory usage: Unknown ]   [ 26 database queries used ]   [ GZIP Disabled ]   [ Server load: 3.66 ]