There is no need to allocate elperiodic in the __init__. Just do it as we go, among other things, this allows "scheduling frequency" to be specified as an argument to loop().
There is no need to allocate elperiodic in the __init__. Just do
it as we go, among other things, this allows "scheduling frequency"
to be specified as an argument to loop().

sippy/b2bua,sippy/b2bua