SIP outbound call limitation

[mohammad saeed]

Hi guys,

I bought one sip lines from ISP contains 300 lines DID/DOD but I want to know if there is a limitation in cucm 8.6 if 100 lines or more want to call outside together at the same time. Is there any SIP call limitation in Cisco voice system?

Thanks for all

Mohammad Saeed

[Terry Cheema]

There is no limit from CUCM. If you have 300 SIP channels/lines - you would be able to dial to utilize all of the 300 channels, provided:

1) You have enough bandwidth

2) You have enough licenses on your SBC (if you use one)

CUCM will not limit the number of SIP calls.

-Terry

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[mohammad saeed]

What about the CUBE is there any limitation because I heard there is a sessions can buy it to increase the the number of calls?!

Is that correct?

Thanks,

[Jitender Bhandari]

The only limitation is the processing power for the platform, there is no session licenses if thats what you mean.

JB

[mohammad saeed]

What is it mean by sessions (Unified Border Element Enterprise License - 5 sessions)?

this is for CUBE 2920 Voice router

[Jitender Bhandari]

Those are paper licenses which means you dont have to install it on the device itself, CUBE licenses are RTU(Right to use) again platform decides the capability.

Also see below for details.

http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/voice/cube/configuration/cube-book/voi-cube-licensing.html

http://www.cisco.com/c/en/us/products/collateral/cloud-systems-management/software-activation-on-integrated-services-routers-isr/white_paper_c11_556985.html

JB

[Jitender Bhandari]

Below link would provide you more details regarding the session capability for different platforms CISCO provide

^**When using a SM to NIM adapter card for each Service Module slot to turn it into an additional NIM.

Table 9.       CPU Performance on the 4300 and 4400 Series Unified Communications Routers^*

Cisco ISR Platform	4321	4331	4351	4431	4451
VoIP Performance: Maximum # of Simultaneous Calls (not exceeding 75% platform CPU usage)
Cisco Unified Border Element	100	500	1000	3000	6000
Standalone Unified Communications Router1
No encryption	100	500	1000	3000	6000
SIP TLS with SRTP	100	500	1000	3000	6000
H.323 Signaling in IPsec with SRTP	100	500	1000	3000	6000
H.323 Signaling and media in IPsec	100	500	1000	3000	6000
WAN Edge Gateway2
No encryption	100	500	1000	3000	6000
SIP TLS with SRTP	100	500	1000	3000	6000
H.323 Signaling in IPsec with SRTP	100	500	1000	3000	6000
H.323 Signaling and media in IPsec	100	500	1000	3000	6000
WAN Edge Gateway with Compressed Real-Time Protocol (CRTP)3
No encryption	100	500	1000	3000	6000
SIP TLS with SRTP	100	500	1000	3000	6000
H.323 Signaling in IPsec with SRTP	100	500	1000	3000	6000
H.323 Signaling and media in IPsec	100	500	1000	3000	6000

¹ Gigabit Ethernet or Fast Ethernet egress; no quality-of-service (QoS) features; voice traffic only

² T1/E1 or High-Speed Serial Interface (HSSI) serial egress; some QoS features; voice and small amount of data traffic

³ T1/E1 or HSSI serial egress; some QoS features; CRTP; voice and small amount of data traffic

Table 10.     CPU Performance on the 2900 and 3900 Series Unified Communications Routers^*

Cisco ISR Platform	2901	2911	2921	2951	3925	3945	3925E	3945E
VoIP Performance: Maximum Number of Simultaneous Calls (not exceeding 75% platform CPU usage)
CUBE	100	200	400	600	800	950	2100	2500
Standalone Unified Communications Router1
No encryption	100	150	240	400	720	960	600	840
SIP TLS with SRTP	100	150	240	400	720	880	600	840
H.323 Signaling in IPsec with SRTP	100	150	240	400	720	780	600	840
H.323 Signaling and media in IPsec	100	150	195	325	360	385	600	840
WAN Edge Gateway2
No encryption	100	150	240	400	610	650	600	840
SIP TLS with SRTP	100	150	240	400	600	645	600	840
H.323 Signaling in IPsec with SRTP	100	150	240	400	530	565	600	840
H.323 Signaling and media in IPsec	100	125	145	235	265	285	600	840
WAN Edge Gateway with Compressed Real-Time Protocol (CRTP)3
No encryption	100	150	240	400	510	550	600	840
SIP TLS with SRTP	100	150	240	400	500	540	600	840
H.323 Signaling in IPsec with SRTP	100	150	240	400	445	475	600	840
H.323 Signaling and media in IPsec	95	105	120	200	220	240	600	840
VoIP Performance: Maximum Number of Calls per Second (not exceeding 75-percent CPU)
	1	1.5	2	3	10	15	30	35

¹ Gigabit Ethernet or Fast Ethernet egress; no quality-of-service (QoS) features; voice traffic only

² T1/E1 or High-Speed Serial Interface (HSSI) serial egress; some QoS features; voice and small amount of data traffic

³ T1/E1 or HSSI serial egress; some QoS features; CRTP; voice and small amount of data traffic

Notes:

1. All results represent G.729A or G.711 (20-ms packetization) switched H.323 calls with VAD turned off.
2. The call success rate (CSR) of all tests is 98 to 100 percent.
3. Call duration of tests is 180 seconds except for calls-per-second rate testing, where the duration is shorter. The test release is Cisco IOS Software Release 15.0.1M for Cisco 2900 and 3900 ISRs. For the testing of the Cisco 4400, Cisco IOS XE Software Release 3.10 was used. This document contains general numbers as a guide to the approximate performance of the unified communications routers. The numbers are extrapolated from a large number of disparate tests, test conditions, and traffic patterns. Several nontesting factors have also been accounted for. Therefore, actual test results will vary, and we encourage you to do proof-of-concept testing for more specific performance numbers for a specific scenario, traffic pattern, or release.

http://www.cisco.com/c/en/us/products/collateral/unified-communications/tdm-gateways/data-sheet-c78-729824.html

JB

[mohammad saeed]

But it means 5 sessions is available for this CUBE if I need more sessions I have to buy licenses! Right?

[Jitender Bhandari]

No, this is what i am trying to explain they are just paper licenses, they do not restrict sessions in any way.

JB

[Jitender Bhandari]

Look at the below discussion it might help.

https://supportforums.cisco.com/discussion/11035831/cube-licensing-29xx39xx-routers

JB