Dear all,
We're planning for Cisco Voice Gateway configuration with SIP trunk, till now no E1s are used.
I would like to know how can we calculate the number of simulataneous calls that a cisco ISR G2 router (1921. 2921.3945,etc...) can support ?
How much sip simultaneous calls each ISR G2 model can support ?
Is it better to use SIP or we must get into E1 PRI ?
Regards,
