JustAGlitch
Programmer
We have a BCM 400 4.0 patched to the latest releases. Here is the current topology we have in place.
System is in Guatemala
They have a PSTN E1 circuit
H323 trunks going to a Meridian 1 gatekeeper Resolved
VOIP calls route to a SONUS which then converts from its G.729 from us on H323 over to G.711 over SIP.
4 PECIII cards present and working
Customer has 600k reserved for voice. G729 is what we are pushing over VOIP so using G729 with overhead we should be able to get about 17 VOIP calls at one time.
6/2 split
TDM phones NO IP phones
When a call comes into the E1 and it immediately routed over the VOIP trunks to the SONUS we see the RTP going G.729 from BCM to SONUS.
BCM monitor shows TDM to IP Est. bandwidth being 64K per call and not the 34K of G729 so basically the numbers is always doubled above what we feel it should be. I know the E1 will come into the system G711 Alaw and send that codec request in the header to the VOIP trunk but the trunk "seems" to be keeping with our G.729 setting.
Now here is the kicker. On the 8th call we have either calls drop or very bad quality.
The ONLY place I can find any resource equaling 8 total is when looking at the Media Card on each PEC. PEC 1 shows 1-G.729, PEC 2 shows 1-G.729 and PEC 3&4 show 3 each of G.729. Each of these are listed as a "Loaded Task" on the PEC cards. for the G.711 on each PEC the numbers are 7,1,4 and 2 for a total of 14.
We cannot find anywhere in programming, alarms, logs any setting that would cap this calling at 8 calls. Furthermore on the PEC's in the documentation it actually doesnt count the G.729 for IP trunks as a needed DSP resource. I believe that is a typo because the next chart shows allocations on the example.
Does anyone have any ideas OR does anyone know how to change the loaded tasks for G.729 for the PEC Media card?
See image of BCM Monitor below
If It's Not Broken...Don't Fix It!
Stephen Webb
Norstar, BCM and IP Office Engineer
System is in Guatemala
They have a PSTN E1 circuit
H323 trunks going to a Meridian 1 gatekeeper Resolved
VOIP calls route to a SONUS which then converts from its G.729 from us on H323 over to G.711 over SIP.
4 PECIII cards present and working
Customer has 600k reserved for voice. G729 is what we are pushing over VOIP so using G729 with overhead we should be able to get about 17 VOIP calls at one time.
6/2 split
TDM phones NO IP phones
When a call comes into the E1 and it immediately routed over the VOIP trunks to the SONUS we see the RTP going G.729 from BCM to SONUS.
BCM monitor shows TDM to IP Est. bandwidth being 64K per call and not the 34K of G729 so basically the numbers is always doubled above what we feel it should be. I know the E1 will come into the system G711 Alaw and send that codec request in the header to the VOIP trunk but the trunk "seems" to be keeping with our G.729 setting.
Now here is the kicker. On the 8th call we have either calls drop or very bad quality.
The ONLY place I can find any resource equaling 8 total is when looking at the Media Card on each PEC. PEC 1 shows 1-G.729, PEC 2 shows 1-G.729 and PEC 3&4 show 3 each of G.729. Each of these are listed as a "Loaded Task" on the PEC cards. for the G.711 on each PEC the numbers are 7,1,4 and 2 for a total of 14.
We cannot find anywhere in programming, alarms, logs any setting that would cap this calling at 8 calls. Furthermore on the PEC's in the documentation it actually doesnt count the G.729 for IP trunks as a needed DSP resource. I believe that is a typo because the next chart shows allocations on the example.
Does anyone have any ideas OR does anyone know how to change the loaded tasks for G.729 for the PEC Media card?
See image of BCM Monitor below
If It's Not Broken...Don't Fix It!
Stephen Webb
Norstar, BCM and IP Office Engineer
